[Mimedefang] Domain canonifyin?g and RFCs
David F. Skoll
dfs at roaringpenguin.com
Wed Oct 19 13:12:59 EDT 2011
On Wed, 19 Oct 2011 16:45:04 +0200
Ernst du Plooy <eduplooy at gmail.com> wrote:
> It seems that RFC2821 legalised the use of CNAMEs and Sendmail should
> not rewrite it anymore (the information above seems to be out dated).
I agree. Sendmail's gratuitous rewriting of envelope and sometimes header
addresses is extremely annoying. It's a relic of the past.
> Like I mentioned I can fix my sendmail behaviour with the
> confDONT_EXPAND_CNAMES option. I would however like to find proove
> that the behaviour of sendmail is still valid. The reason I don't
> want to implement confDONT_EXPAND_CNAMES is that I currently use this
> server to rewrite the sender domain on purpose for an internal server.
You can use other rules to rewrite internal domains. I think
confDONT_EXPAND_CNAMES should be the default.
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