Re: MAIL FROM follies

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Author: Neal Becker
Date:  
To: Eric S. Raymond
CC: fetchmail-friends, exim-users
Subject: Re: MAIL FROM follies
>>>>> "Eric" == Eric S Raymond <esr@???> writes:

    Eric> First, a question.  Is anybody here expert enough with
    Eric> sendmail/smail/qmail/exim to know what can cause them to reject a MAIL FROM
    Eric> address?


exim can be configured to be quite picky. In that case, it will
refuse to accept mail from any address that it can't find a route back
to. I suppose this normally means do a DNS lookup, and try to find a
valid MX or address record corresponding to the MAIL FROM. I don't
know if exim goes any further to verify.