[Top] [All Lists]

Re: [ietf-smtp] Address transformations

2016-08-01 07:59:20
John R Levine <johnl(_at_)taugh(_dot_)com> wrote:

So my reading is that while 5321 tells me that it's OK to use a CNAME in MAIL
FROM/RCPT TO, 1123 still tells me that it's better to resolve those CNAMEs

I hope that nobody who matters believes this, but if you look at the two
documents it's not a totally ridiculous way to reconcile them.

Sendmail still does RFC 1123 mail domain canonicalization unless you use

Qmail does it unconditionally (and uses DNS ANY queries in the process).

f.anthony.n.finch  <dot(_at_)dotat(_dot_)at>  -  I xn--zr8h 
Shannon: Cyclonic becoming southwesterly 5 or 6, occasionally 7 in south,
decreasing 4 at times later. Moderate or rough. Rain, then drizzle later, fog
patches. Moderate or poor, occasionally very poor.

ietf-smtp mailing list

<Prev in Thread] Current Thread [Next in Thread>