[Mailman-Users] OT: Yahoo Deferrals

Chris Miller mailman at chrismiller.com
Fri Oct 2 18:41:38 CEST 2009

Jeff Grossman wrote:
> I have a question regarding Yahoo deferrals.  I know this subject has
> been talked about a lot.  Everything I could find via Google was from at
> least a year ago though.  I was wondering if anybody has found new ways
> of limiting the Yahoo deferrals?

I haven't read these threads, and my lists are much lower traffic, but
I'll throw this out there anyway. My mail used to be deferred for long
periods of time. The way I got around this was to set SMTP_MAX_RCPTS=3
in Mailman/Defaults.py. This obviously increases the number of
connections per message (not to mention unnecessary bandwidth), and that
itself will probably cause some amount of deferals. I suspect this in
combination with other tweaks will ease the situation. Hope this helps...


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