17 Dec
2023
17 Dec
'23
11:39 a.m.
Hi,
Port 465 is typically for implicit-SSL, whereas port 587 is for explicit-SSL (ie: requires the client to issue a STARTTLS command after connecting).
I'm not sure exactly what stunnel config changes are needed to deal with that different protocol, but that is where you shoukd start looking.
Regards, Mike