A client is trying to send mail to someone at sandi.net, whom
I'll call [user]. SIMS is telling him the user is unknown. So far,
sounds pretty ordinary, however...
He has (as have I) tried addressing it as [user]@sandi.net and
as [user]@mail.sandi.net. Both fail with a 550.
Now a lookup on sandi.net reveals:
Query:
sandi.net.
Query type: MX record
Recursive query: Yes
Authoritative answer: Yes
Query time: 6990 ms. Server
name: n/a
Answer:
sandi.net.
86400
MX 20
smtp2.cerf.net.
Recursive query: Yes
Query time: 6990 ms.
Answer:
So... I did a lookup for MX records for
"mail.sandi.net:
Query:
mail.sandi.net. Query type: MX record
Recursive query: Yes
Authoritative answer: Yes
Query time: 699 ms. Server
name: n/a
Answer:
mail.sandi.net. 86400
MX 30
smtp2.cerf.net.
Recursive query: Yes
Query time: 699 ms.
Answer:
mail.sandi.net = 165.24.1.201 -- This is the highest priority MX
for "mail.sandi.net"
ns2.sandi.net = 165.24.5.81 -- This is the highest priority MX
for "sandi.net"
So, depending on whether it was addressed to [user]@sandi.net or
[user]@mail.sandi.net, SIMS should be contacting either 165.24.1.201
OR 165.24.5.81, yes?
But the mail rejection notices all say:
Failed to deliver your message to [user]@sandi.net:
SMTP: Address rejected by host
Host 'ns2.sandi.net' says:
Host 'ns2.sandi.net' says:
550 <[user]@sandi.net>... User unknown
That is, it is ns2, not "mail" that returns the
rejection both times. Why? Because, presumably, mail.sandi.net,
riptide.sandi.net and lowtide.sandi.net are not responding?
In any case, the client cannot get mail to this account at
sandi.net. He can from his place of work (which does not use SIMS)
and from his home.com account. He just can't do it through my SIMS
server. (550)
Puzzled.
Failed to deliver your message to [user]@sandi.net:
SMTP: Address rejected by host
Host 'ns2.sandi.net' says:
SMTP: Address rejected by host
Host 'ns2.sandi.net' says:
550 <[user]@sandi.net>... User unknown
Reporting-MTA: dns; MDCCLXXVI.com
Final-Recipient: rfc822; [user]@sandi.net
Action: failed
Status: 5.0.0
Action: failed
Status: 5.0.0
Received: from [64.212.3.139] (HELO [10.10.10.11]) by
MDCCLXXVI.com (Stalker SMTP Server 1.8b8) with ESMTP id S.0001250897
for <[user]@sandi.net>; Sat, 28 Apr 2001 09:05:32 -0700
Mime-Version: 1.0
Message-Id: <p04330102b7109ad2a41a@[10.10.10.11]>
X-BOR2: RKBA!
Date: Sat, 28 Apr 2001 09:05:51 -0700
Mime-Version: 1.0
Message-Id: <p04330102b7109ad2a41a@[10.10.10.11]>
X-BOR2: RKBA!
Date: Sat, 28 Apr 2001 09:05:51 -0700
To: [user]@sandi.net
From: WebMaster <[EMAIL PROTECTED]>
From: WebMaster <[EMAIL PROTECTED]>
Subject: test
Content-Type: text/plain; charset="us-ascii"
____
Failed to deliver your message to [user]@sandi.net:
SMTP: Address rejected by host
Host 'ns2.sandi.net' says:
Host 'ns2.sandi.net' says:
550 <[user]@sandi.net>... User unknown
Reporting-MTA: dns; MDCCLXXVI.com
Reporting-MTA: dns; MDCCLXXVI.com
Final-Recipient: rfc822; [user]@sandi.net
Action: failed
Status: 5.0.0
Action: failed
Status: 5.0.0
Received: from [64.212.3.139] (HELO [10.10.10.11]) by
MDCCLXXVI.com (Stalker SMTP Server 1.8b8) with ESMTP id S.0001250895
for <[user]@mail.sandi.net>; Sat, 28 Apr 2001 09:02:52 -0700
Mime-Version: 1.0
Message-Id: <p04330101b7109a217a80@[10.10.10.11]>
X-BOR2: RKBA!
Date: Sat, 28 Apr 2001 09:03:18 -0700
Mime-Version: 1.0
Message-Id: <p04330101b7109a217a80@[10.10.10.11]>
X-BOR2: RKBA!
Date: Sat, 28 Apr 2001 09:03:18 -0700
To: [user]@mail.sandi.net
From: WebMaster <[EMAIL PROTECTED]>
Subject: test
From: WebMaster <[EMAIL PROTECTED]>
Subject: test
Content-Type: text/plain; charset="us-ascii"
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