Mail Gurus Please Help

Ben Butler 760.f563 at
Wed Apr 6 21:27:07 UTC 2022

>From a workstation on the private Lan telent to the private IP of the
server on port 25.

Lets assume that worked, check the gatway/router address on the mac server
points to the private ip of the firewall.  Now that shpuld work for you.

If you didnt pass the first step there is a problem on your mail server.

This could be a routing problem caused by change of ip on tgw inside of the
firewall meaning the mac server is no longer using the correct IP as its
gateway IP.


On Wed, 6 Apr 2022, 22:20 Das Goravani, <goravanis at> wrote:

> I have been in contact with my ISP. They do not block ports.
> Something is blocking port 25.
> The MailServe app says Connection Refused in it’s mail Que.
> Telnet’ing into the server gives a time out.
> Sending mail to the address gives an Undeliverable returned message to you.
> Using Network Utility with Port Scan says 25 is open and fine. Odd.
> It’s not NO-IP, it’s not my ISP Spectrum, it’s not the router, port
> forwarding is done
> I am going round and round on this. I can’t find WHAT WHO IS BLOCKING PORT
> 25
> I’m about to give up and just open an email account for the address with
> GoDaddy or somebody else.
> That is sad because it WAS working at my last address in FL. Just days
> ago. Nothing has changed except I moved.
> Now too I realize my cell phone doesn’t work in my apartment building, or
> not well enough to use.
> Man I am suffering connectivity hell these days.
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