What is New in SmartPOP2Exchange?

Bug fixes

• A problem in the SpamAssassin in a Box service has been fixed.
• An encoding problem in the copyright has been fixed.

10/15/2025

Improvements

• New version of SpamAssassin: v4.0.1

• Updated virus scanner: ClamAV v1.4.3 with critical security updates

Bug fixes

• Problems with the encrypted connection to servers have been fixed

• An error when exporting account settings has been fixed

09/29/2025

Improvements

• Updated virus scanner: ClamAV v1.4.1 with critical security updates.

09/11/2024

Improvements

• Updated virus scanner: ClamAV v1.3.1 with critical security updates

Changed compatibilities

• Support for Windows Server 2008 R2 has been removed.

• Support for Windows 7 has been removed.

06/21/2024

• New version v1.3.0 of ClamAV with critical security updates

02/12/2024

• New version of the virus scanner: ClamAV v1.2.1.
• Account groups are now saved correctly.

01/24/2024

• Added support for Windows Server 2022.
• Updated virus scanner: ClamAV v1.1.0.
• A problem with scaling the spam filter lists was fixed.
• A bug in Jam.SaneSecurityUpdateCleaner was fixed.
• Fixed an issue that caused the SpamAssassin in a Box service to stop responding under certain circumstances.

10/24/2023

• Updated spam protection: SpamAssassin in new version v4.0.
• Updated virus scanner: ClamAV v1.0.1.
• Added support for Windows Server 2022.
• Added support for Windows 11.

03/27/2023

• New version of the virus scanner: ClamAV v0.105.0

06/15/2022

• New version of the ClamAV virus scanner: ClamAV v0.104.2.
• The default update interval for ClamAV signatures has been increased from 3 hours to 12 hours to comply with ClamAV's traffic limitation.
• An error when stopping the SpamD process was fixed.

Changed compatibilities

• SmartPOP2Exchange now requires .NET Framework 4.8.

03/18/2022

• New version of virus scanner: ClamAV v0.103.3.
• New version SpamAssassin in a Box V2.5.0.26. New SpamAssassin version V3.4.4.
• For newly configured IMAP accounts, processed emails are now left on the server and marked as read.
• SmartPOP2Exchange supports TLS 1.2 for SMTP, POP3 and IMAP connections.
• The custom SpamAssassin configuration file can now be edited from the interface again.
• A problem with starting the SpamAssassin in Box service has been fixed.
• The new hidden configuration option "IgnoreFullBackupPartition" allows the service to continue picking up emails even though there is no more space on the partition for the email backup. The option has an effect only if the email backup is enabled and the partition used for the backup is not the C partition.
• The window for resending the EML files can now be enlarged.

08/03/2021

• New version SpamAssassin in a Box V2.5.0.18.
• New SpamAssassin version V3.4.4.
• Wildcards can now be used for the Auto-Whitelist exceptions.
• New version of ClamAV in a Box V1.0.5.14.
• New version of the virus scanner: ClamAV V0.103.0.
• The signature update no longer blocks ClamAV.
• The RAM consumption has increased due to the new way of signature management.
• If necessary, the value for "ConcurrentDatabaseReload" in the file "clamd.conf" can be set to "No" to restore the old behaviour with less RAM consumption.
• The update of the SaneSecurity signatures now no longer restarts the "ClamAV in a Box" service. Problems caused by the inaccessibility of the virus scanner service have been fixed.
• SmartPOP2Exchnage v8.9 now only supports 64-bit operating systems

11/12/2020

• OAuth2 authentication for retrieving email from Outlook.com and Office365 is already supported by SmartPOP2Exchange.
• The Event Viewer has now even more flexibility in filtering. You can select a separate filter condition for each column.
• The limit of accounts to be processed simultaneously has been increased from a maximum of 8 to a maximum of 32.
• A new condition for checking the size of attachments has been added.
• The option "Add the path of saved attachments to message content" only optionally adds a clickable link now.
• The action "Send the following automatic reply to the sender" uses now the email address stored in the SMTP account.
• Under certain circumstances an error message was displayed incorrectly when displaying the IMAP settings. This has been fixed.
• A problem with the server settings in the dialog for resending emails was fixed.

06/08/2020

• Due to an error in the configuration file, the update of the ClamAV signatures might not work anymore. This has been fixed.
• In some cases the SpamAssassin service blocked after a few hours and no more spam scans could be performed. This has been fixed.
• Stopping the SpamAssassin service could cause a timeout under certain circumstances. This has been fixed.
• SpamAssassin may have run without DNS blacklist testing and Razor2 testing. This has now been fixed.
• SpamAssassin's configuration file contained incorrect preferences which could cause SpamAssassin to crash. This has been corrected.
• A problem in the action to replace or change header entries was fixed.
• It is now possible to enter various special characters in IMAP passwords. Instead of the previous error message "Test Connection", only a hint is now displayed that some mail servers may not support certain special characters in the password.

03/19/2020

• Several problems with the new SpamAssassin service have been fixed.

03/02/2020

• New version of the virus scanner: ClamAV v0.102.0
• Improved SpamAssassin in a Box service.
• Improved import: SMTP server, port and authentication, as well as the account groups can now be imported.
• When importing account data, it is now possible to use a file that includes both POP3 and IMAP accounts. In a column, the account type must be specified.
• The import of account settings now also allows overwriting existing account data. In this way it is now possible to update account settings.
• It is now possible to export the login and connection data of the POP3 and IMAP accounts as a CSV file.
• When saving attachments via rules action you can now set whether a time stamp is to be added to the file name or not.
• In time-controlled processing, it is now possible to invert the schedule so that no email download occurs at specified times.
• A new action in the rules allows to set the SCL value of an email.
• The new hidden configuration option "UseAnsiEncodingForBackupFilename" enforces the ANSI character set for the file names in the email backup.
• A new setting for IMAP accounts allows you to move the retrieved emails to another folder on the server.
• IMAP accounts could sometimes pick up already processed emails under certain circumstances. This has been fixed.
• A problem with the encoding of stored emails has been fixed.
• An exception error message from the backup has been fixed.
• Fixed a bug in the dialog for viewing emails in IMAP mailboxes.
• An error in the processing of emails with a too large UID has been fixed.
• An error in the action to extract zip attachments has been fixed.

03/02/2020

• Updated version of ClamAV: ClamAv v101.2.
• The program interface could freeze under certain cirucumstances. This is now fixed.
• Added a new option to exclude certain header fields in catch-all shipping.
• A new configuration option for collective accounts now allows to exclude specific recipient addresses.
• The actions "Forward copy to ..." and "Send a copy to ..." have been added to the SMTP error actions.
• Folders in the backup can now be moved to a configurable folder automatically after automatic packing.
• In some cases an e-mail to collection accounts has been sent twice. This is now fixed.
• The autoreply action now always uses the correct sender.
• SmartPOP2Exchange now requires .NET v4.7.2. The installation may require a reboot of the system.

07/24/2019

• Updated virus scanner: ClamAv V0.101.1.
• The initial loading of the event viewer has been accelerated.
• Under certain circumstances the program interface could freeze. This is has been fixed.
• The schedule settings are now saved correctly and a configured schedule is used correctly again.
• When using ClamAv and third-party anti-virus software in parallel, the condition "E-mail contains virus" may not have been evaluated correctly. This has been fixed.
• The "Exclude infected emails from backup" setting (under Anti-Virus) will now be saved.
• ClamAv signatures may have been updated too frequently.
• The hidden setting "ExcludedCatchAllRecipients" for collection accounts did not remove e-mail addresses specified as exceptions as intended.
• When using a NAS with SMB share as a backup destination, the free space could not be determined correctly and the service was stopped.
• When saving emails, the characters "[" and "]" are now replaced with "_" to avoid problems when processing by PowerShell.

02/25/2019

Controlled Processing

• Revised "Show emails on server" (IMAP) function. Clear and transparent display of the emails to be processed next. It is now possible to manually specify which emails SmartPOP2Exchange should process next. Individual e-mails can be blocked or explicitly marked for download. In addition, it is now possible to delete individual e-mails and save e-mails.
• In the "Show Emails on the Server" dialog (IMAP), it is now possible to search for e-mails or to filter by criteria. The subject, sender, recipient, read status, size and date fields of the e-mail, as well as the UID can be used to find specific e-mails.
• IMAP accounts can now be forced to download individual messages in the "Show email on the server" dialog. It is now also possible to manually set which e-mails should be downloaded on the server.
• "Show emails on server" is now also included in the Small Business Edition.

Spam-Detection / New version: SpamAssassin V3.4.2

• SHA-256 and SHA-512 hashing is now used to verify the signature updates.
• Defective HTML emails no longer crash the service.
• Several new plugins, including “Mail::SpamAssassin::Plugin::HashBL” and “Mail::SpamAssassin::Plugin::Phishing”.
• Further security issues have been solved.

Anti-Virus / New version: ClamAV V101

• Several security holes have been closed.
• The ClamAV virus scanner is now also included in the Small Business Edition.

Notifications and log behavior

• If the free disk space is too small, errors are now logged and the e-mail processing is aborted.
• Failure to deliver a mail will no longer automatically send a notification to the recipient of the email. If desired, this can now be configured in the log settings.
• Similarly, an error message containing the message content is no longer automatically sent to the administrator if delivery fails. This can also be activated in the log settings if required.
• If necessary, errors when updating the virus signatures can now be logged as errors instead of as warnings.
• The errors contained in the optional automatic error notification to the administrator can now be filtered.
• The automatic e-mail notification in the event of an error no longer skips any error entries.

More new features

• Even more flexible rule system: Conditions can now use regular expressions.
• Newly created accounts are no longer automatically activated. This allows IMAP accounts to manually configure which emails to download.
• New action "Clean header" allows to clean up incorrectly coded header entries.
• New rule action "Replace in subject" allows text substitutions in the subject of emails.
• A new condition allows checking for the name of attachments.
• A new option in the spam condition now allows setting the maximum size of emails to be scanned for spam.
• In the case of IMAP accounts, emails can now be left on the server for a maximum of 10 years, if the server allows it.
• The setting for the automatic deletion of old e-mails in the backup now allows values of more than 365 days.
• For collective accounts, it is now possible to configure a "preferred header entry". An e-mail address found in this header field is given preference in determining the possible recipients of an e-mail.
• A hidden configuration setting called "ExcludedCatchAllHeader" allows certain headers to be ignored when automatically identifying recipients for bulk accounts.
• Subfolders in the failed delivery order will now be automatically deleted if there are no emails in them after successfully re-delivery.
• Individual accounts can now be excluded from e-mail backup.
• Improved failover behavior for network connection issues.

Further improvements in the system service

• In some circumstances, emails already retrieved were retrieved from an IMAP account. This has been fixed.
• In some cases the connection to the server was not closed correctly in case of an error. This could cause the number of connections allowed on the server to be exceeded.
• Emails from IMAP accounts were not deleted correctly in some circumstances if the options "leave emails on server" and "delete emails after x days" were active.
• The SMTP timeout value has been increased from 6 minutes to 20 minutes. This avoids delivery problems when using very time-consuming virus and spam scans on the destination SMTP server.
• The SmartPOP2Exchange system service may have paused too long between two runs.
• Pick-Up Folders now also use the general interval settings, as in IMAP and POP3 accounts.
• Issues with SpamAssassin installation have been fixed.
• The " ClamAV in a Box" system service is now always installed with the start type "automatic", so that it is available at system startup.
• The "Add sender to whitelist" and "Add sender to blacklist" actions now work correctly.
• TLS can now also be used without authentication (username and password).
• If the ClamAV virus protection is active, a warning is issued if the virus scanner can not find or load signatures.

Further improvements in the interface

• The interface can no longer freeze when a dialog is displayed.
• Using many parallel fetchers no longer freezes the UI.
• An empty path in the settings for the failed delivery location no longer causes the software to crash.
• After saving the settings, the sorting of the accounts will now be retained and will no longer be lost.
• The ActiveDirectory query that detected the available e-mail addresses in the domain has been greatly improved, so that the launch of SmartPOP2Exchange on systems with very large AD is no longer delayed.
• The used ClamAV version is now always displayed correctly.
• The action "Convert POP3 to IMAP" now uses the correct default port in all cases.
• Improvements to the display of the event log.
• When auto-update is enabled, Event Viewer will no longer automatically scroll down.
• Saving e-mails from the "Show e-mails from the server" dialog now works correctly again.
• The Duplicate Account feature no longer incorrectly creates two copies of an account.
• A query dialog now prevents accidental activation of all accounts.
• New POP3 accounts now use port 995 instead of port 25 by default.
• Errors sorting accounts have been fixed.
• The Account Settings Import Wizard now also correctly maps the column for the destination email address.
• When switching between different preference pages in the interface, under certain circumstances manual changes were saved without prompting.
• Errors in the Excel import have been fixed.
• The antivirus rule is no longer automatically activated by mistake.
• The "Resend Email" dialog now uses by default the SMTP server names used in the accounts.

01/01/2019

• Only two delivery attempts were made in case of SMTP errors while sending e-mails which were downloaded via IMAP. Not processed emails were not saved to disc. This has been fixed.
• In case of IMAP errors while downloading an email, the e-mail was processed repeatedly, so that the account could get blocked by unprocessed emails. Now emails are not downloaded again after four failed download attempts.
• In case of an IMAP error during deletion of already processed e-mails the deletion was canceled for all processed emails. This caused a new download attempt of already processed emails. Now, the IMAP connection is reset and a new attempt is made.
• A similar problem has been fixed for marking an email as "read" on IMAP accounts (see above).
• Several Problems during POP3 download have been fixed: reconnecting after a server side closed connection works correctly now.
• In case of a failed sending attempt the SMPT server answer was not parsed and logged correctly. This caused the SMTP error rules to fail. This has been fixed.
• SMTP errors during a sending attempt of EML-files are now also written to the eventlog.
• In case of Catch-All accounts a quoted-printable encoded display name (such as containing Umlauts) caused an error in email address parsing. This caused sending to an additional (invalid) recipient address which in turn caused an SMTP error.
• Adjusted the maximum of configurable "number of parallel processed accounts".
• Fixed issue in "SpamAssasin Daemon Controller" service: an error while loading the configuration file caused the service to fail.
• The new system service "ClamAv in a Box" is now installed correctly in all cases.

05/15/2018

• Updated ClamAV version to 0.99.4: This fixes several security issues in ClamAV.
• In case of corrupted downloaded emails, these emails are no longer removed from server (or marked as read), instead a second download attempt is made.
• In case of particular SMTP errors during sending attempts the emails were downloaded multiple times from server. This has been fixed.
• In some cases the email processing was stopped due to an internal error. This has been fixed.
• Added hidden config option ("ExcludedCatchAllRecipients") to exclude a recipient list from automatically determined list of catch-all addresses.
• Added new default SMTP error rule to handle emails that are rejected by Exchange recipient filter correctly
• Several minor improvements has been made.

03/09/2018

• SmartPOP2Exchange is now able to import the settings from the freeware P2S. A P2S configuration is automatically detected and SmartPOP2Exchange asks for import.
• New action in "SMTP error rules" allows suppressing error messages. This is helpful in case the administrator does not wish to get an email notification for certain error messages.
• Fixed IMAP issue: In rare cases the IMAP download did not work correctly, very high IMAP UIDs are processed correctly.
• Added hidden configuration option to allow optional specification of a HELO name for email sending actions.

11/23/2017

• A SaneSecurity signature update caused the ClamAV service to crash. The signature files causing this problem have been removed and the update process has been improved to ensure that incompatible signature files will not cause problems in the future.
• If the SMTP Error "Connection closed gracefully" appears, another delivery attempt will start.
• Some minor problems regarding IMAP download have been fixed.
• In case of errors, a notification will only be sent to the administrator if the email was meant to be delivered.
• An error is logged if the email backup folder is not available.
• Limiting the event log view to a certain number of entries now works correctly.
• Some minor Improvements have been integrated.

04/26/2017

• The automated email notification in case of errors did not work with enabled authentication. This has been fixed.

03/08/2017

• A SaneSecurity signature update caused the ClamAV service to crash. The signature files that caused this problem have been removed.
• The option "exclude infected emails from backup" has been fixed.

02/14/2017

• On systems where SmartPop2Exchange had to process a high amount of undeliverable mails, the load of the service gradually increased which potentially prevented the accounts from being fully processed. This problem has been fixed.
• In rare cases SpamAssassin did not run. This has been fixed.
• Downgrade to ClamAV engine v98.7.0, due to possible errors during signature updates regarding the latest version.
• Particular IMAP servers caused multiple downloads of the same email message. This problem has been solved.
• In rare cases emails were not delivered to the correct recipients when using catch-all accounts. This has been fixed.
• In rare cases the system service was not restarted correctly when exporting the settings. This problem has been fixed.
• The "Windows Defender" can now be used in combination with ClamAV.
• An error when navigating between accounts in the user-interface has been fixed.
• An error in the test for the virus detection has been fixed.
• A few minor bug fixes have been incorporated.

10/20/2016

• Bugfix: A problem causing the "Email backup" setting not to be loaded on application startup has been fixed.
• Please note: Support for Windows Server 2003 (and XP) will be dropped in the next version of SmartPOP2Exchange (v8.5). You will be unable to install the next version on unsupported systems.
• A few minor bug fixes and improvements have been incorporated.

06/30/2016

• Bugfix: A problem occurring when changing SpamAssassin options has been fixed.
• Bugfix: Fixed the installation of the integrated SpamAssassin on Server2003 64 bit systems.
• Bugfix: Fixed an error occurring when zipping email backup folders.
• A few minor bug fixes and improvements have been incorporated.

06/15/2016

• Added: A new rules system for dealing with SMTP errors (similar to the existing) has been added.
• Added: The new version ClamAV V0.99 has been integrated. (Enterprise Edition only)
• A new version of SpamAssassin (V3.4.1) has been incorporated.
• The Send-EML-Tool is now capable of using zip files from the backup folder.
• Removed grouping of log messages according mail messages to fix some performance issues with the log.
• Bugfix: Resolved a problem where accounts would no longer be processed when the connection got lost while establishing an SSL connection
• A few minor bug fixes and improvements have been incorporated.

06/02/2016

• Bugfix: The scheduler sometimes downloaded emails from accounts even though they should have been excluded from download operations. This is no longer the case.
• A few minor bug fixes and improvements have been incorporated.

08/04/2015

• Added: The new version ClamAV V0.98.6 has been integrated into the Enterprise Edition.
• Added: IPv6 support
• Added: Error notifications can be sent to multiple recipients. The addresses have to be separated with semicolons.
• Added: The maximum log size can now be set in the log settings.
• Added: The folder for failed deliveries can now be adjusted in the global settings.
• A few minor bug fixes and improvements have been incorporated.

07/07/2015

• Bugfix: If many emails were downloaded from an IMAP account, single messages were sometimes skipped.
• Bugfix: A problem with connections to server only supporting explicit SSLv3 has been resolved.
• A few minor bug fixes and improvements have been incorporated.

02/04/2015

• Bugfix: The link on the top right indicating delivery failures has been re-added.
• Bugfix: Errors during processing IMAP accounts have been fixed.
• A few minor bug fixes and improvements have been incorporated.

01/26/2015

• A new version of SpamAssassin with improved bayes usage has been incorporated.
• The IMAP server processing has been revised.
• The EML-Sender tool has been revised.
  • Messages can now be deleted automatically after successfully delivery, if desired.
  • Sub-folders may now be processed recursively.
• The event log was completely reworked. It does now automatically update and supports various types of filtering and grouping.
• The maximum delivery attempt count is now a user setting.
• A few minor bug fixes and improvements have been incorporated.

01/05/2015

• The default setting for newly created POP3 and IMAP accounts is now secure connection (SSL).
• When importing account data from external sources (such as CSV, Excel etc.) the 'Allow duplicates' option is now supported.
  • The key for identifying duplicates is the POP3/IMAP user name.
• The scheduler can now be used to define download intervals for each account individually.
• Fix: You can once again enter intervals spanning several days in the scheduler.
• A few minor bug fixes and improvements have been incorporated.

01/16/2014

• Bugfix: The settings for the number of parallel account processing are now saved correctly.
• Bugfix: In rare cases, the service froze without an error message.
• Bugfix: Right-clicking on a group no longer causes an exception.
• A few minor bug fixes and improvements have been incorporated.

11/26/2013

• Added: Parallel processing of POP3/IMAP accounts.
• Added: New scheduler enabling users to schedule specific email download times for each day and account individually.
• Added: Groups for accounts. You can now arrange accounts in groups for better overview in the accounts tree.
• Added: A search function for account names in the tree view.
• Added: Graphical interface for editing the "valid domains" list for catch-all accounts.
• Added: Users can now explicitly define which kind of secure connection shall be used (none, TLS, SSL).
• The latest version of SpamAssassin (V3.4) has been integrated.
• ClamAV has been reverted to V0.97.6 because the latest version is not able to update signatures on several systems.
• Account wizard has been completely reworked.
• Support for RSS Accounts has been dropped.
• A few minor bug fixes and improvements have been incorporated.

10/28/2013