RE: [cobalt-users] Majordomo 552 errors

["Dan Kriwitsky" <list1@xxxxxxxxxxxxxxxxxxxx>]

> > Whilst I sort of understand the gist of the info I can't 
> tell if the 
> > problem is local or nhs.uk refusing such a large influx of messages 
> > from a single domain (as an anti-spam measure)
> 
> It looks as if nhs.uk refuses delivery of a single message 
> with lots of 
> recipients.  If so, they do it as an anti-spam measure and have made 
> the decision that the tradeoff (mailing lists don't get through) is 
> worth it to them and their users.

Without seeing the headers from one of his list email it's hard to say
whether that is entirely the problem since the error message could be
somewhat generic. Perhaps the sender IP doesn't match the sending domain
as might be expected on a large list email.

AOL does something similar.
-- 
C2003 Dan Kriwitsky

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