[Mailman-Users] Performance issues with 12K subscribers and 14K subscribers and personalized footers.
brennan at columbia.edu
Tue Oct 1 22:05:27 CEST 2013
Worth noting, Mailman is a lot faster if you don't send to 1 at a time.
If they're all at the same domain, like our mass mail to staff and
students, it is really fast:
smtp to xxxx for 25570 recips, completed in 39.777 seconds
smtp to xxxx for 41153 recips, completed in 84.754 seconds
Even if they are at many different domains it does well:
smtp to xxxx for 2016 recips, completed in 158.363 seconds
smtp to xxxx for 2199 recips, completed in 701.392 seconds
Manager, Email and Systems Applications
Columbia University Information Technology
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