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Re: [PLUG] Odd email problem
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On Fri, Sep 26, 2008 at 1:10 AM, JP Vossen <jp@jpsdomain.org> wrote:
> I'm trying to diagnose an odd email problem with a GNU Mailman list.
> One list member is using Outlook to send email to the correct address,
> PANTUGGeneral@lists.pantug.org, but each message is being rejected as
> destined for PANTUGGeneral@mail.pantug.org. Note the @lists. vs. @mail.
> parts.
>
> We've gone so far as to sniff the outgoing traffic, but as far as I can
> tell it looks like normal SMTP leaving the local machine on the wire and
> going to the correct address. But Postfix logs a reject to the wrong
> address.
>
> For this, and other reasons he's switched hosting providers, and the
> problem persists. We're not aware of any SMTP proxies, and find it hard
> to believe that a proxy would swap parts of an address... OTOH, the
> reverse lookup of the server *is* mail. (not list.), so it's possible
> something is trying to be "helpful." We just can't figure out what.
It sounds like that thing trying to be helpful is postfix itself. What
other pieces are there in the chain? (I'm assuming that the mail is
going direct to MX from his ISP's outbound MTA).
--
Toby DiPasquale
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