gascione wrote:
>
>
> Chris Lightfoot wrote:
>> On Mon, Oct 02, 2006 at 07:02:23AM -0700, gascione wrote:
>>> Hello;
>>>
>>> We send all mail outbound from our primary mail servers to Exim outbound
>>> relays so we can perform some basic tests on the mail and also load
>>> balance
>>> the outbound traffic.
>>>
>>> We have a problem with AOL. We have established their required feedback
>>> loops and get SPAM reports from them. But they always strip out the
>>> recipient's name from the header so when somebody is on one of our
>>> customer's legitimate lists and complain anyway we cannot tell who it is
>>> so
>>> we can remove them from the list. AOL won't help and tells us to make it
>>> stop but we will not tell you who is complaianing.
>>>
>>> I want to put a tag in the header of all email on the way out. Something
>>> like: X-SNDRCP: sender@???@domain.com
>>>
>>> That tag will later help us identify who should be removed from what
>>> list.
>>> Where should this go and what would the syntax be. Is this in the ACL
>>> section, routers? And what would it look like.
>> what do you intend to do when the message has >1 recipient
>> within AOL (such that it might be delivered with several
>> RCPT TO statements in a single transaction)? If you put
>> all the addressees in the headers in plaintext, this could
>> reveal Bcc: information which would not usually be
>> available to the recipients -- it would be better to
>> encrypt the data with some secret known only to you if you
>> do put it in the header. Alternatively you could ensure
>> that each delivery is made in a separate SMTP transaction
>> (e.g. with max_rcpt = 1 in the transport), in which case
>> the simpler approach would work. Either way, you could add
>> the header with a warn statement in an ACL or headers_add
>> in a router or transport.
>>
>>
>
> Interesting, I was only anticipating putting one single email. Most of our
> lists go out to 1 person at a time. Guess I had not thought that one out far
> enough. Time to re-think.
If you're using something like Mailman which supports personalized
messages per list member, then you can add a footer which includes the
recipient's email address. In our experience, AOL does not sanitize
that. Works pretty well for us. But I think I'll check out the ARF
stuff. That seems like it'll work better.
M
--
Michael F. Sprague | mfs@???
http://www.saneinc.net | Provider of SpamOnion anti-spam service
System and Network Engineering (SaNE), Inc
