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Old 8th May 2009, 10:41
Cracklefish Cracklefish is offline
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Default SMTP Config

I think that there is unprotected public access to my smtp server. I can send email via this server which is on the office network, from home, without any authentication

How should I configure it so that external clients have to authenticate but internal clients get direct access?

I am running Suse11.1 with ISPConfig 3 and using the Suse firewall
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Old 8th May 2009, 19:12
till till is offline
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It does not meam´n that your server is a open relay if you can send from the internal network. Use a open relay test which are available on the internet to test if your server is really a open relay.
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Old 12th May 2009, 14:09
Cracklefish Cracklefish is offline
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The open relay test says the server is not open.

I don't understand what is going on as I can access this server when I am connected to the internet on an external ip address albeit using the same ISP ie my home not the office. Surely this should not be possible.

However I would like to set up a relayhost - How?
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Old 12th May 2009, 20:53
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http://www.howtoforge.com/postfix_re...her_mailserver
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Old 13th May 2009, 11:34
Cracklefish Cracklefish is offline
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Sorry, my inexperience and ignorance is showing! I have obviously used the wrong terminology.

Currently we have an account with an ISP that allows us worldwide access to their SMTP server but requires a password and username ( is this authenticated access?) I want to provide this facility on our mail server.
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Old 14th May 2009, 16:14
falko falko is offline
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So you want a mail server that others can use to relay emails? All you need is SMTP-AUTH and an email account (together with a username & password). The username and password is what the other servers need to authenticate.
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