Microsoft KB Archive/197183

= Cisco PIX Software Causes Strange Content in SMTP Messages =

Article ID: 197183

Article Last Modified on 10/28/2006

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APPLIES TO


 * Microsoft Exchange Server 4.0 Standard Edition
 * Microsoft Exchange Server 5.0 Standard Edition
 * Microsoft Exchange Server 5.5 Standard Edition

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This article was previously published under Q197183



SUMMARY
Administrators of the Microsoft Exchange Internet Mail Service (IMS) may notice SMTP content that once passed through a Cisco 'PIX' router, contains strings of 'XXXXXXXXXX's.



MORE INFORMATION
The issue is associated with Cisco bug # CSCDK46673. Cisco has a fix available.

Here is an excerpt from Cisco's bug report:   Bug Id : CSCdk46673 > Headline   PIX 4.2(2) - fixup smtp trashes E-mail when NOOP is issued >  > Product    pix    Model > Component  pix-app   Duplicate of     >  > Severity    2    Status     R   > > Version Found   4.2(2)    Fixed-in Version    4.2(3) > Release Notes In PIX 4.2(2), when a NOOP is issued by an SMTP server > behind a PIX when the fixup smtp command is enabled, portions of the > E-mail will be replaced by a series of Xs, which may render the > resulting message unreadable.

Additional query words: Cisco PIX SMTP XXX

Keywords: kbfix kbinfo KB197183

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