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What's needed in SMTP->Relaying->Upstream-hosts/networks

pelumu
Hi,

I'm just checking the SMTP configuration of my UTM Version 9.3 and don't know what to enter in Relaying->Upstream-host/Networks.
I use an internal Exchange Server and receive mails using an MX at my ISP:

- Hostname mydomain.de, Type MX, Priority 20, Destination extern.mydomain.de
- Hostname mydomain.de, Type MX, Priority 40, Destination myisp

What do I have to enter in Upstream-hosts/Networks that spam checking works correct. Which URL or IP?
Should I check "Allow upstream/relay hosts only"?

Kind regards
Peter


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    You add the static IP address from your ISP where you're hosting your MX records.  If this is the only way you are receiving emails you can select Allow upstream/relay hosts only.  I've never bothered though, someone smarter than me can probably tell you if it's a good idea or not.
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    You add the static IP address from your ISP where you're hosting your MX records.  If this is the only way you are receiving emails you can select Allow upstream/relay hosts only.  I've never bothered though, someone smarter than me can probably tell you if it's a good idea or not.
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