I hope you don’t mind, but none of our systems have this issue.
Are you on a cluster
We are setting up a new test server, so when ready I’ll check this and let you know
I might not have explained it well, but I also haven’t tried it with the latest version. I will be setting up a new InterWorx box soon and I will confirm as well. I have seen this issue many times, where I enable the alternate port 587 service, setup the first customer, instruct them to use the alternate port if their ISP intercepts 25, and then they calback saying it doesn’t work. After a little debugging I always find the firewall (“on”) doesn’t have port 587 open (or even in the list). I have to add it manually.
Perhaps it has been fixed already and I’m not aware. I haven’t setup a new box in the last month. (None of mine are clustered.)