SMTP Port availability

1

Is there any option to add specific SMTP port, my smtp server port is 443, and the available ports are only three port 25, 465, and 587.
I am using the latest version of Manager and my system is windows 11

thank you

2

These are the only ports available for SMTP. Port 443 is never used for SMTP as it is an SSL / TCP port. Your email hosting provider would be able to tell you which SMTP port to use.

3

thank you, I will check with them

4

Saying “the latest version of Manager” is ambiguous

You need to state the edition (cloud, server, desktop) and the version number

5

I have the latest desktop version 23.11.23.1158

thank you

6

I already explained that Port 443 is never used for SMTP and I hope that you managed to get a response from your mail hosting provider what port to use.