Re: [cobalt-users] Majordomo 552 errors

[Jeff Lasman <blists@xxxxxxxxxxxxx>]

On Thursday 11 December 2003 02:00 pm, Dan Kriwitsky wrote:

> 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.

I don't think it's generic at all; it sways "too many recipients" and 
it's a known anti-spam effort to block based on too many recipients.

And your proposal (sender IP matching sending domain) would appear to me 
to be quite uncommon on today's Internet.

> AOL does something similar.

As does Hotmail.  And it's a reason why many lists are now refusing 
memberships from users of these email addresses.

Jeff
-- 
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Professional Internet Services & Support / Consulting / Colocation
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