Cant send mail with SMTP with port 25

Q&A
1

Hello
I’m having problem sending mail from pim, both on lab- and Prod-server.
I have the same settings as my other systems that wants to send mail, and they work.
I have settings:
server=
port=25
Security=empty
Username=username or empty dose not matter
From-fields as needed

I get the error:
Error 500: Unable to connect with STARTTLS: stream_socket_enable_crypto(): Peer certificate CN=`electric.net' did not match expected CN=`<my e-mail server address that works>'
I have tried playing with settings, but can´t find any that works.
We use our e-mail server address and port 25 on many systems, printers and so on, every unit that has to notify anyone, have this working.

Anyone else having this problem?

2

Also, this make it so a cant change password on users, because it whants to mail or send notise, but I as an administrator gets error 403 when trying to change password.

3

It seems to be a problem with using SMTP and port 25 and security none.
I can´t find any other solution just now.

And this error make it so if I try to reset a password of a user, the password sets to NULL in database, and user cant login anymore, and cant reset password because of same “STARTTLS: stream_socket_enable_crypto()” error.

I think there is a bug selecting security none, and the system tries to use TLS anyway.