I'll have to defer to those that are running PIX.[1] A quick search through
the archives will more then likely reveal that "no fixup protocol smtp 25"
is highly recommended. Additionally, a quick web search on "no fixup
protocol smtp 25" will reveal that use of the command is mixed. Some claim
it is not needed others claim it is.
Here is a quote from a poster on securepoint.com mailing list, "This has
been a problem forever. It has been fixed in some releases of the PIX
firmware, but it has been broken in more releases than not. Just give up
and turn
off the smtp protocol fixup.
no fixup protocol smtp 25
Better yet, I could suggest you do what we have done. Dump the Cisco PIX"
YMMV,
--
Matthew Monteleone-Haught
Information Technology
E-mail: [EMAIL PROTECTED]
Wheaton USA Inc
A member of the ALCAN group of companies
MCSE
[1]perfectly happy with my CheckPoint FW!!!!!!!!!!!!!
>>>-----Original Message-----
>>>From: Atkinson, Daniel [mailto:[EMAIL PROTECTED]]
>>>Sent: Wednesday, January 16, 2002 7:29 AM
>>>To: Exchange Discussions
>>>Subject: RE: Troublesome IMS
>>>
>>>
>>>is this essential? i just checked our pix and smtp fixup is
>>>enabled - i'm not aware of any problems though...
>>>
>>>
>>>> -----Original Message-----
>>>> From: Monteleone-Haught Matt - Millville
>>>> [mailto:[EMAIL PROTECTED]]
>>>> Sent: 16 January 2002 12:23
>>>> To: Exchange Discussions
>>>> Subject: RE: Troublesome IMS
>>>>
>>>>
>>>> Cisco PIX? No SMTP fixup!!!!
>>>>
>>>> >>>-----Original Message-----
>>>> >>>From: Earl, Daniel [mailto:[EMAIL PROTECTED]]
>>>> >>>Sent: Wednesday, January 16, 2002 6:21 AM
>>>> >>>To: Exchange Discussions
>>>> >>>Subject: Troublesome IMS
>>>> >>>
>>>> >>>
>>>> >>>
>>>> >>>> Hello all,
>>>> >>>>
>>>> >>>> Our Exchange server is suffering from a problem where a
>>>> mail gets
>>>> >>>> delivered, but the mail sticks in the IMS's 'Outbound mail
>>>> >>>awaiting
>>>> >>>> delivery' queue with '(host unreachable)' next to it. This
>>>> >>>results in
>>>> >>>> the IMS retrying to redeliver the mail at the set
>>>> >>>intervals and the
>>>> >>>> somewhat annoyed recipient receiving multiple copies of
>>>> >>>the mail until
>>>> >>>> it expires. This only happens occasionally - most mail
>>>> >>>goes out fine.
>>>> >>>> I have noticed that is does happen to one email that gets sent
>>>> >>>> regularly from one of our users to an external mailbox.
>>>> >>>> I have tried using nslookup from the server and can telnet
>>>> >>>in to port 25
>>>> >>>> of the other servers without a problem.
>>>> >>>>
>>>> >>>> Our box is set up as follows:
>>>> >>>>
>>>> >>>> NT4, Sp6a, PIII, 3 processors, 1gb mem.
>>>> >>>> Exchange 5.5 sp4 (configured as per Q181420 - 'How to
>>>Configure
>>>> >>>> Exchange or other SMTP with Proxy Server') Network Associates
>>>> >>>> GroupShield (Antivirus Server Extension: 4.5.572.171 &
>>>> >>>Server Admin
>>>> >>>> Extension: 4.5.572.128) Network Associates Netshield 4.5.0
>>>> >>>(with the
>>>> >>>> recommended Exchange directories excluded from scanning).
>>>> >>>>
>>>> >>>> I also had the Network Associates Message Body Scanning
>>>> >>>tool installed
>>>> >>>> but thought this might have been contributing to the
>>>> problem so I
>>>> >>>> removed it a few months ago, but the problem sill continues.
>>>> >>>>
>>>> >>>> Any ideas?
>>>> >>>>
>>>> >>>> Many thanks,
>>>> >>>>
>>>> >>>> Daniel.
>>>> >>>>
>>>> >>>>
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>>>> >>>
>>>> >>>
>>>>
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