On Wed, Sep 27, 2017 at 07:00:39PM -0700, Michael Fox wrote:
> > This is an obsolete option in Sendmail that violates decades old SMTP
> > standards, CNAME canonicalization of recipient domains went away in
> > RFC 2821 and there are many email domains that are aliases where the
> > mailbox addres
> > On Sep 26, 2017, at 11:23 PM, Michael Fox wrote:
> >
> > BTW, the mail provider found that the default sendmail config and their
> own
> > customized config both rewrote the From: header when the From: address
> was
> > for a domain that had a CNAME record. They said this is a config option
>
> On Sep 26, 2017, at 11:23 PM, Michael Fox wrote:
>
> BTW, the mail provider found that the default sendmail config and their own
> customized config both rewrote the From: header when the From: address was
> for a domain that had a CNAME record. They said this is a config option in
> sendmail
