Knowledge Base


Question / Problem

Sending out 6,000 emails using scheduled processing at quantity 35 every 2 minutes. After around 500 or so messages sent, we get an SMTP Server Error #10053. What is this and how do we resolve it?

Answer / Solution

Error#10053 means "A connection abort was caused internal to your host machine.The software caused a connection abort because there is no space on thesocket 's queue and the socket cannot receive further connections."So theSMTP server closed the connection. Someprovider have a limit for sending mails within a certain time span. Some permitonly 50 mail per hour, some other permit only 500 mails within 24 hours/a day.
Pleasemake sure that your provider does not have such a limit. It looks like there isa limit of 500 mails per day.Do alsocheck if you have a anti-virus software are firewall/internet securityinstalled which may have a similar limit.