Call them and tell them to open it. It probably isnt legal for them to close the port if you ask them to open it.
Comment on Mail-in-a-Box - simple email server
mesamunefire@lemmy.world 3 days ago
Ive used this in the past to host an email server. Eventually, my ISP actually stopped allowing people to use mail ports, so I had to discontinue. But it worked very well when I used it many years ago.
jagged_circle@feddit.nl 3 days ago
9tr6gyp3@lemmy.world 3 days ago
Its perfect for a small VPS. Been using it for years.
I do occasionally get places where my email simply will not send to them, even though it follows every email standard properly and isnt blacklisted. For those rare occasions, ill use a third party email address to send, which then forwards everything to my main email.