Date: Mon, 25 Feb 2002 12:08:59 -0800 (PST) From: "Jeremy C. Reed" <reed@reedmedia.net> To: Chip Morton <tech_info@threespace.com> Cc: FreeBSD Chat <chat@freebsd.org> Subject: Re: blocked mail Message-ID: <Pine.LNX.4.43.0202251158460.25937-100000@pilchuck.reedmedia.net> In-Reply-To: <4.3.2.7.2.20020224193235.01935ab8@threespace.com>
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On Sun, 24 Feb 2002, Chip Morton wrote:
> >germanium:jack {103} host -t mx cox.net
> >Host not found, try again.
I don't see that from the three COX nameservers.
I see that mx.east.cox.net is the MX. It is running InterMail.
> Yep, that's who it is. I'm glad to know that it's not just me. I'm not
> sure what the hell MX records are, but thanks for the tip.
An MX record basically tells the sending mail server what remote mail
server handles the email for a host. For example, aaa.foo's email may be
handled by supermailcompany.bar -- so the DNS would indicate that with an
MX record.
If you don't have an MX record then it tries the A record (which is the IP
for the hostname).
Also, an MX record has a preference value. So you can list several hosts
that can handle email for you. The lower the number, the higher the
priority. Usually, the high numbers (lower priority) are just backups,
that temporarily queue your mail. (But some use multiple MXs to provide a
redundant mail service.)
> And to Terry, it's just easier to use the Cox SMTP server because it allows
> me to send mail using all my "personalities." The other doesn't have that
> convenience.
Maybe you could just use your FreeBSD box to handle your outgoing email
yourself. (Usually that is even more convenient.)
Jeremy C. Reed
http://bsd.reedmedia.net/
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