"Nathan Kodak" <Nathan Ko
...@discussions.microsoft.com> wrote in message
news:A93511B2-73B5-4A9F-ADA4-BD6A647BA0EC@microsoft.com...
> I saw a post on this subject already, but the last part of it was never
replied to, so here it is again, in hopes of recieving an answer.
> Is the Microsoft IIS 5/6 SMTP Server RFC1123 5.2.17 compliant? In case you
are unsure, this RFC compliance deals with Domain Literals.
recieve a warning from our backup MX stating that it does not accept domain
literals.
> WARN: One or more of your mailservers does not accept mail in the domain
literal format (user@[0.0.0.0]). Mailservers are technically required
RFC1123 5.2.17 to accept mail to domain literals for any of its IP
addresses. Not accepting domain literals can make it more difficult to test
your mailserver, and can prevent you from receiving E-mail from people
reporting problems with your mailserver. However, it is unlikely that any
problems will occur if the domain literals are not accepted.
> smtp.intraforce.com's postmaster@[xx.xx.xx.xx] response:
> >>> RCPT TO:<postmaster@[xx.xx.xx.xx]>
> <<< 550 5.7.1 Unable to relay for postmaster@[xx.xx.xx.xx]
> Please advice.
As far as I know, the IIS mail server doesn't claim to be compliant with
that part of RFC1123. For what it's worth, Exchange Server isn't compliant
either. In practical terms, this non-compliance isn't an issue -- no one
really uses domain literals.
|
