On Wed, 2021-10-20 at 14:36 -0400, Viktor Dukhovni wrote:
On Wed, Oct 20, 2021 at 02:29:26PM -0400, fp145 wrote:
> > > In summary, postfix mail works fine if VPN if off, does not work
> > > if
> > > VPN is on, any advice would be appreciated, thanks DAN
>
> Hey! I have exactly the same problem. [...]
Actually, nothing like the OP's problem...
> Oct 20 20:07:51 libertyfp postfix/smtpd[174025]: warning:
> unknown[87.246.7.245]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
The client is sending an incorrect password, but if you want to resolve
this, start a new thread, instead of taking over this thread. (That
is, post a new message, DO NOT REPLY to this or other message in
this thread).
On 20.10.21 14:44, fp145 wrote:
Well, the *symptom* is exactly the same -- works with vpn off and
doesn't work with vpn on.
I'm not sure how that's different than "In summary, postfix mail works
fine if VPN if off, does not work if VPN is on."
Those two sound suspiciously similar to me.
different problems can have same symptomps...
But OK. The password is fine with the vpn off, but the password is bad
with the vpn on. I wonder why this only happens with postfix, but I'll
find out somewhere else.
I guess your VPN provider is hijacking your TCP connections to port 25.
have you tried using port 465 for authenticated submission?
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