* Muhammad Yousuf Khan <sir...@gmail.com>: > On which port are you trying to submit the message? Port 587? You likely are > > > enforcing TLS on that port. > > > > my submitting port is set to 465. there are only 2 ports listening under > Postfix process. 25 and 465 > > > In any case either change the smtpd_tls_policy_level to 'may' or configure > > the client failing to use STARTTLS. > > my smtpd_tls_policy_level is already set to "may". can you please explain > "or configure the client failing to use STARTTLS." > > sorry if you find my questions very beginner level i am very new and > trying to learn.
That's how we all start. Don't worry about that. On which port does your client connect? Once we have that, we can check the config on Postfix's end. p@rick -- [*] sys4 AG https://sys4.de, +49 (89) 30 90 46 64 Franziskanerstraße 15, 81669 München Sitz der Gesellschaft: München, Amtsgericht München: HRB 199263 Vorstand: Patrick Ben Koetter, Marc Schiffbauer Aufsichtsratsvorsitzender: Florian Kirstein
