[77756] in North American Network Operators' Group
Re: Time to check the rate limits on your mail servers
daemon@ATHENA.MIT.EDU (Gu=?iso-8859-1?B?8A==?=bj=?iso-885)
Thu Feb 3 18:50:59 2005
In-Reply-To: <Pine.LNX.4.61.0502031539490.12790@twin.uoregon.edu>
Date: Thu, 3 Feb 2005 23:50:23 +0000
From: "Gu=?iso-8859-1?B?8A==?=bj=?iso-8859-1?B?9g==?=rn S. Hreinsson" <gsh@centrum.is>
To: Joel Jaeggli <joelja@darkwing.uoregon.edu>,
Adi Linden <adil@adis.on.ca>
Cc: nanog@merit.edu
Errors-To: owner-nanog-outgoing@merit.edu
>> How about using SMTP AUTH and verifying the envelope MAIL FROM to match
>> the actual user authenticating?
>
> that doesn't work if you have more than one email address.
Wouldn't address resolution take care of that if properly
configured? Some implementations allow you to specify what
email addresses the user is allowed to send from, that's
something that needs to be managed carefully.
-GSH
