[Users] SMTP error with GMX

[Ricardo Mones]

On Thu, 19 Aug 2021 17:32:42 +0100
"Jeremy Nicoll" <jn.ml.clwm.729 at letterboxes.org> wrote:

> On Thu, 19 Aug 2021, at 17:28, wwp wrote:
> > Hello, 
> > On Thu, 19 Aug 2021 15:57:25 +0000 sargon102 at gmail.com wrote:
> >   
> > > I'm using claws with GMX on Slackware linux. Version 3.17.8. I am
> > > unable to send emails. I get a 550 error. Sender address is not
> > > allowed.
> > > 
> > > I use the same server settings with Vivaldi mail and have no problems.
> > >  
> > 
> > Sending with the GMX SMTP works here :-/.  
> 
> Surely a 550 isn't a problem with the sending server, but a problem 
> with the intended receiving server not recognising the mailbox or
> user that a message is being addressed to?

No, it depends on the command for which the 550 is returned.
That's why Paul asked for the log. See details on RFC 5321¹.

regards,

¹ https://datatracker.ietf.org/doc/html/rfc5321#section-4.3.2
-- 
  Ricardo Mones 
  ~
  bash: ./signature: No such file or directory              /bin/bash

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