John Peacock wrote:
4) Change your startup script to also bind to port 465 (e.g. with forkserver add
--port 465)
FYI:
With both port 25 and 587 you connect to in plaintext, and can "upshift"
to SSL via STARTTLS command (if the server is configured for it).
With port 465, the whole connection is in SSL.
Apparently the port 465 variant is deprecated in favor of 587/STARTTLS.
Most people talk about 25 and 587 these days, and most if not all
clients support TLS in either.
[There are some ISPs that use TLS over 25 instead of 587 for client
submission.]
You can test port 25/587 TLS with swaks. You apparently can't test 465
"full SSL" with swaks.
