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Old 01-04-2011, 08:06 AM   #1
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Postfix: how to explicitly permit "joeblow@mydomain" from certain address ranges

One of our clients uses a mobile client, which "helo"s with a non-resolvable hostname (which contains the correct IPv4 address in the name but does not resolve). I'd like to be able to config PERMIT "joeblow@mydomain" when the helo-name is "*". Can anybody give me a hint how to do this, if it is even possible?

Right now it just rejects based on not resolving the HELO name.

Old 01-05-2011, 04:16 AM   #2
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I would start here. There may be a restrictions setting that you can alter to loosen things up to allow this user. My first thought was what authentication method are you using and would SASL solve your problem. This would avoid the need to restrict authorized senders via host or network. However, I suspect you are getting tripped up on a generalized setting where this particular client doesn't comply with the standards closely enough and gets tagged as invalid.
Old 01-05-2011, 06:33 AM   #3
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Yes, especially check_helo_access can specify a table for smtpd_helo_restrictions to allow access.



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