nanog mailing list archives

Re: disabling SMTP


From: Richard Welty <rwelty () averillpark net>
Date: Sat, 27 Mar 2004 21:43:17 -0500 (EST)


On Sat, 27 Mar 2004 20:27:03 -0600 "Eric A. Hall" <ehall () ehsco com> wrote:



I'm wondering if the installed base of legitimate messaging systems has
migrated to ESMTP so as to get away with disabling plain-old SMTP except
for internal devices.

Anybody got any data or observations on this?

yes. there are a lot of pix firewalls out there with smtp fixup turned on,
effectively disabling ESMTP (not to mention sporadically breaking
traditional SMTP.)

richard
-- 
Richard Welty                                         rwelty () averillpark net
Averill Park Networking                                         518-573-7592
    Java, PHP, PostgreSQL, Unix, Linux, IP Network Engineering, Security


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