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Jeff Crosby wrote:
Cisco 2600 and a Cisco PIX 506E.

Ok, I did a bit of digging and found this:

http://www.cisco.com/univercd/cc/td/doc/product/iaabu/pix/pix_sw/v_63/cmdref/df.htm#wp1029552 or http://tinyurl.com/5ezrg#wp1029552

> As of PIX Firewall software Version 5.1 and higher, the fixup
> protocol smtp command changes the characters in the SMTP banner
> to asterisks except for the "2", "0", "0 " characters. Carriage
> return (CR) and linefeed (LF) characters are ignored.

So, this is why the host name is being masked out.

You *MAY* want to try and shutoff 'fixup' on port 25 and see what happens.

david


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