On 07/20/2014 08:06 PM, Peter Shute wrote:
> 
> Is limiting normally applied strictly per recipient? Or does it reduce the 
> problem if lots of the members are on one domain? 50% of our members are with 
> just 5 domains.


It depends on the specific service and their policies. They could limit
recipients or SMTP transactions. If they limit recipients, there's not
much you can do.

If the limit is on transactions, you can leave Mailman's default
settings for SMTP_MAX_RCPTS (500) VERP (No) and personalization (No) and
Mailman will group domains into a few transactions with many RCPTs and
this may help.

But the question remains. If MTA rate limiting is the answer, why did it
only start not long ago (In one post you said 11 July).

-- 
Mark Sapiro <m...@msapiro.net>        The highway is for gamblers,
San Francisco Bay Area, California    better use your sense - B. Dylan
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