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Using port 465 (TLS) instead of 25 SMTP (PlainText).
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Jeff-Relf.Me
Nov 13, 2018, 1:31:03 AM11/13/18
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My email host Forced me to encrypt my outgoing emails (SMTP),
using port 465 (TLS) instead of 25 SMTP (PlainText).
TLS 1.0 is buggy ( only an even number of bytes can be sent ! ),
TLS 1.2 Works great, 1.3 isn't available to me.
This is about 10 hours of my changes:
Jeff-Relf.Me/Diff.PNG
See also: gMail.C and X.CPP in "Jeff-Relf.Me/X.ZIP".
Visual Studio 2017, Windows-10.
using port 465 (TLS) instead of 25 SMTP (PlainText).
TLS 1.0 is buggy ( only an even number of bytes can be sent ! ),
TLS 1.2 Works great, 1.3 isn't available to me.
This is about 10 hours of my changes:
Jeff-Relf.Me/Diff.PNG
See also: gMail.C and X.CPP in "Jeff-Relf.Me/X.ZIP".
Visual Studio 2017, Windows-10.
Jeff-Relf.Me
Nov 13, 2018, 1:35:52 AM11/13/18
to
My email host Forced me to encrypt my outgoing emails (SMTP),
using port 465 (TLS) instead of 25 (PlainText).
Wolf K
Nov 13, 2018, 9:17:23 AM11/13/18
to
Thunderbird 60.3.0 on Win 8.1.
--
Wolf K
kirkwood40.blogspot.com
People worry that computers will get too smart
and take over the world, but the real problem is
that they’re too stupid and they’ve already taken over
the world (Pedro Domingos)
Jeff-Relf.Me
Nov 13, 2018, 6:25:19 PM11/13/18
to
Wolf K replied:
> > My email host Forced me to encrypt my outgoing emails,
> > using port 465 (TLS) instead of 25 (PlainText), SMTP.
> >
> > Jeff-Relf.Me/Diff.PNG -- gMail.C and X.CPP in "Jeff-Relf.Me/X.ZIP".
I (re)wrote it.
> " People worry that computers will get too smart
> and take over the world, but the real problem is
> that they’re too stupid and they’ve already taken over
> the world " -- Pedro Domingos
So true.
> > My email host Forced me to encrypt my outgoing emails,
> > using port 465 (TLS) instead of 25 (PlainText), SMTP.
> >
> > Jeff-Relf.Me/Diff.PNG -- gMail.C and X.CPP in "Jeff-Relf.Me/X.ZIP".
>
> What's your email client? I have no problems with SS:L/TLS on
> Thunderbird 60.3.0 on Win 8.1.
X.EXE in "Jeff-Relf.Me/X.ZIP"; see: "Jeff-Relf.Me/X.HTM".
> What's your email client? I have no problems with SS:L/TLS on
> Thunderbird 60.3.0 on Win 8.1.
I (re)wrote it.
> " People worry that computers will get too smart
> and take over the world, but the real problem is
> that they’re too stupid and they’ve already taken over
So true.
Richard Damon
Nov 16, 2018, 1:56:40 PM11/16/18
to
port, which will (or at least should) have you authenticate to the
server that you are allowed to use it to distribute messages. 587 is the
more standard port, and 465 is legacy support for TLS.
Port 25 is for SMTP transport, and a server should only accept messages
on that port that it is authorized to deliver mail to, it is for
INCOMING email.
Some systems have improperly accepted submission on port 25, but this
causes all sorts of issue to avoid becoming an open relay and being
marked as a spam source.
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