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In the end I had to tell 2 (BIG) multi nationals to update there own machines but was able to give them a good reason for this. Just to tell them that their email bounces / get rejected by our server would be very unprofessional. So yet again thank you all!

Unfortunately big companies often have outdated exchange configs but it forces me to use backward compatibility I suppose. I will give it a try and and let you know if it solved the problem. Thank you so much! The DA community Rocks!

Its a bit hard to tell 2x multi nationals to change their config. Is there a way in DA that I can accept old SSL / TLS so my client can receive emails from their client. Or is this a BIG NO GO?? Strange thing is that it always worked until 5x weeks ago. Could it be that something change with an...

First thanks for your fast reply. It took some time fix the above but now have a different error in log file.. 2020-07-27 12:33:17 TLS error on connection from mailserver.ofsomeone.com [89.140.99.106] (SSL_accept): error:1408A0C1:SSL routines:ssl3_get_client_hello:no shared cipher It is weird...

I have a client who has trouble receiving email from an exchange server. In my maillog I get the following error and can't work out why our server is rejecting the email. I think I have read every page on the internet but have not found a clear explanation for this problem. My sys admin says...

It worked like a charm... Thank you so much.

Here the header replaced her email with herdomain.nl. Hope someone had a genius solution because untill now I have nor been able to solve it. Return-Path: <> Delivered-To: [email protected] Received: from web01.webspacez.net by web01.webspacez.net with LMTP id g9l7K90Mql697wIAh/S+tg...

I have a client on my server that is getting 300 plus bounce emails. Spam filter does not stop the domains or keywords and the DKIM /SPF are all set properly but the only way I can stop them now is to add the sender IP to my firewall. Was hoping that it would stop eventually but is is now going...