[Users] SMTP error with GMX

[Mark Halstead]

Thanks for all your help! This was a TYPO of all things. Sorry to be
such a dunce. Happy to be using Claws.


On Thu, 19 Aug 2021 19:06:11 +0200
Ricardo Mones <ricardo at mones.org> wrote:

> 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