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CentOS 5.x | Sendmail

Hi Guys,

I have sendmail setup to perform opportunistic TLS but would like to never use TLS when sending to a specific domain. Is there an entry I can add to /etc/mail/access to tell the server not to use it (regardless of whether or not the receiving MTA advertises support)?

M

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Just out of curiosity, why? –  Chris S Jul 12 '10 at 20:33
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One reason: There exists broekn/misconfigured mail servers (for instance, iqc3.math.uwaterloo.ca) that will reject mail coming in on the SMTPS port. (different MikeyB, BTW) –  MikeyB Jul 12 '10 at 20:38
    
TLS doesn't operate on the SMTPS (SSL) port, but I suppose it would be possible to configure a server such that encrypted sessions need to authenticate; which yours is obviously not looking to do. Good call on the "misconfigured server". –  Chris S Jul 12 '10 at 22:33
    
Rigid change management structure. =) –  Mike B Jul 13 '10 at 20:25
    
Thinkoed there - still rather annoyed at their misconfiguration :) –  MikeyB Jul 14 '10 at 13:28

1 Answer 1

up vote 4 down vote accepted

In the /etc/mail/access file, add the line:

Try_TLS:broken.server   NO
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Thanks. This is exactly what I needed. Good name btw ;-) –  Mike B Jul 13 '10 at 20:28
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Go Team Mike B! :D –  MikeyB Jun 27 at 20:07

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