domain literals

rldev

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Joined
May 26, 2004
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Do most of you have domain literal format turned on in exim.conf?
 
We haven't allowed domain literals (receipt of emails at the IP# address instead of the domain name) for several years.

While it's still in the RFCs, most knowledgeable email admins no longer allow it.

It's useless in a shared domain environment, and will only work for system users only, and not for any domain email accounts, even on dedicated IP domains.

It's been used quite a bit by spammers looking for open relays in the past. While most spammers have abandoned the method, we're still vigilant.

When I wrote the exim.conf file used by DA I made a conscious decision to leave domain literals off by default, but the relevant section of the file is well commented for those who want to turnit on.

Jeff
 
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