Where is my SMTP information?

[clever1]

Hi I'm new here and not of a tech savie but my email software needs a smtp information.
I'm using thunderbird and added imap.mydomain.com etc and it works but my other software needs smtp.
Does any know where I can get these smtp information?
SMTP address
Port
Is it SSL or TPL?

[skurudo]

SMTP address - ip or smtp.domain.com
Port - 25,465,587
TLS

[clever1]

SMTP address - ip or smtp.domain.com
Port - 25,465,587
TLS

I've tried all those still does not work.But why does my imap.domain.com in thunderbird works?

[skurudo]

I've tried all those still does not work.But why does my imap.domain.com in thunderbird works?

IMAP use 143 port.