Mailing List CGatePro@mail.stalker.com Message #106932
From: DUDLEY Paul pdudley@anl.com.au <CGatePro@mail.stalker.com>
Subject: RE: 550 server without authentication error
Date: Wed, 15 Aug 2018 23:40:08 +0000
To: CommuniGate Pro Discussions <CGatePro@mail.stalker.com>
Yes I realised after I sent the email yesterday that I had asked a similar question 2 weeks ago (different domain that time).
There is a reason why we have it set to send directly to the recipient which I will not go into here.

Regards
Paul Dudley
pdudley@anl.com.au


-----Original Message-----
Subject: Re: 550 server without authentication error

Hello DUDLEY Paul pdudley@anl.com.au. On Wed, 15 Aug 2018 04:32:04 +0000, you wrote:
  
> At this point in time this is the only external email domain that we
> are sending to which is reporting this problem.
> Are there any settings I can check on our CommuniGate Pro server?

You asked the same question 2 weeks ago. And then, you also noted:

> We have the outgoing SMTP setting set to send directly to the recipient.

which seems to be the cause of your problem. Why can't you just use your provider's SMTP server (and authenticate with them)? Some (or probably many) SMTP servers don't like to receive messages from dynamically assigned IP addresses without authentification.

Christian
--
Christian F. Buser, Hohle Gasse 6, CH-5507 Mellingen (Switzerland)      
Hilfe fuer Strassenkinder in Ghana: http://www.chance-for-children.org

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