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