Send mail to SMTP server on port 443

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4 years 5 months ago #91581 by stevage
stevage created the topic: Send mail to SMTP server on port 443
Hi all,
I've recently set up a specialised mail server that listens on port 443 (because the infrastructure it's on won't allow it to listen on port 25). I've configured LimeSurvey (running on LimeSurvey Professional (previously LimeService)) to use it, but it apparently can't reach it (Error Message: SMTP Error: Could not connect to SMTP host.) No connection of any kind is received from the server side.

In LimeSurvey, the settings are:
Email method: SMTP
SMTP host: 115.146.<see below>.182:443
SMTP username:
SMTP password:
SMTP SSL/TLS: Off
SMTP Debug: Always

(The missing part of the IP address above is eighty-five.)

I can connect to this server fine from my laptop, so I'm wondering:
1) Is there some reason LimeSurvey/LimeSurvey Professional (previously LimeService) would refuse to connect to this server on this port?
2) Could someone try to connect to this mail server? You can't actually send mail to anyone, but would love to know if you can at least connect.

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4 years 5 months ago #91609 by helper
helper replied the topic: Send mail to SMTP server on port 443
My first thought here is that the standard SSL port allows for a browser to connect, but there may not be any SMTP service available at that point. Try this: technet.microsoft.com/en-us/library/aa99...28v=exchg.65%29.aspx (yes, I know it is for Exchange, but the telnet and SMTP answer should be the same). Post your results.

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