[stunnel-users] How to distinguish stunnel definition between SMTP through SSL-TLS vs. STARTTLS?
Harris, Douglas (SSC/SPC)
douglas.harris at canada.ca
Thu Oct 26 15:06:19 CEST 2017
> Ok, if I specify
> what does that mean: "Connect through SSL-TLS protocol" or "connect through STARTTLS protocol"?
That means connect using STARTTLS.
> It seems to me that I ALWAYS have to specify "protocol=smtp" for ALL smtp-server connects.
You don't. If you are not using STARTTLS you don't specify "protocol=".
> Is this done only by port number 465 vs 587?
> That would mean there is a hidden configuration by convention!
Indeed. That would be bad.
> What if the webhoster would set up a special mail server at port 8888?
Then you would specify port 8888 in your "connect=" config
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