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Port 25 Down with Mail Proxy?

Bernhard Kanduth

Hello,

I tried to change my Mail settings away from a external SPAM Filter Service (Upstream) to let my UTM handle all by itself.

What I understand is, that the UTM is opening Port 25 as Proxy and is forwarding the mails to the internal Mailserver and I don't

have to set a Firewallrule for Port 25.

I got curious when a lot of mails didn't get through and got back the SMTP Error 4.4.1 and made a check (https://tools.dnsstuff.com/mstc)

that stated, that Port 25 is down?

Is there anything I am missing in the firewall configuration?

 

- Bernhard



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    Hallo Bernhard and welcome to the UTM Community!

    You shouldn't have to do anything with Firewall rules.  Do you continue to have problems after you follow Basic Exchange setup with SMTP Proxy?  The WebAdmin portion applies to virtually every mail server.

    Cheers - Bob

     
    Sophos UTM Community Moderator
    Sophos Certified Architect - UTM
    Sophos Certified Engineer - XG
    Gold Solution Partner since 2005
    MediaSoft, Inc. USA
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  • 0

    Hallo Bernhard and welcome to the UTM Community!

    You shouldn't have to do anything with Firewall rules.  Do you continue to have problems after you follow Basic Exchange setup with SMTP Proxy?  The WebAdmin portion applies to virtually every mail server.

    Cheers - Bob

     
    Sophos UTM Community Moderator
    Sophos Certified Architect - UTM
    Sophos Certified Engineer - XG
    Gold Solution Partner since 2005
    MediaSoft, Inc. USA
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