Re: [SLUG] Relaying mail in postfix without encryption

From: Chris Mathey (slug@mathey.org)
Date: Sat Jul 15 2006 - 15:27:48 EDT


Paul M Foster wrote:
> Here's a stumper. I want send all local mail to my local SMTP server,
> which is running Postfix. I want any mail not local to our network to be
> relayed to an internet smarthost. Unfortunately, there are two problems.
> First, this smarthost does not do an encrypted connection (no TLS, SSL,
> SASL, etc.). Second, it *does* require a username and password to accept
> a connection. All the docs I've seen for Postfix assume that when you
> use a username and password with a relayhost, you're doing so using SASL
> or TLS encryption. I can't find anywhere in Postfix docs to tell me how
> to set up such a system without the encryption.
>
> Anyone out there who knows Postfix well enough to answer this, I'd
> appreciate some help.
>

If I understand you correctly you basically want to relay some mail to a
SMTP server that requires uid\pw

I haven't tried this but this might be the direction to go:
follow this how wtoo:
http://postfix.state-of-mind.de/patrick.koetter/smtpauth/smtp_auth_mailservers.html

The key section is:
leave this parameter empty "smtp_sasl_security_options =" and it will
use plaintext auth.
Maybe using transports to tell postfix certain domains require SMTP
plaintext auth.

Chris Mathey

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