Re: [Exim] Verisign pulls a fast one

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Autor: Andreas Metzler
Datum:  
To: exim-users
Betreff: Re: [Exim] Verisign pulls a fast one
On Wed, Sep 17, 2003 at 07:16:03PM -0400, Walt Reed wrote:
> On Wed, Sep 17, 2003 at 03:38:53PM -0700, Joe Doehler said:
>> At 01:11 AM 9/16/2003 -0700, Pat wrote:
>>>...
>>> In fact, actually, as I think of it, they'll be getting hit anyway
>>> by sites that are attempting to bounce to forged addresses that don't
>>> correspond to a real domain.
>>>....


>> Wouldn't that assume that Verisign created MX records for those domains?


> Many mail servers fall back to the A record when no MX exists.


s/Many/Every standards compliant/
See rfc2821 section 5.

> BTW, anyone have an ACL that rejects mail when the sender envelope
> domain does not have a valid MX record?


i.e. rejecting mail originating from a host with only an A record?
               cu andreas