On Fri, Aug 28, 2015 at 04:18:14PM +0100, Gary Stainburn wrote: > The server does sit behind a Fortinet firewall which does do SMTP > interception. It has it's own built in anti-SPAM and anti-firewall facility. > > As the problems I have been experiencing have been from external mail servers > I have not been able to do any testing. However, if I use the above openssl > commands from one of my hosted servers, would that re-create the problem?
No, your have to study traversal of tcp packets through firewall, i.e. traffic between *external* smtp client and your mail server. The fact that TLS works locally simply confirms that problem is in some packet filtering on transit. -- Eugene Berdnikov -- ## List details at https://lists.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://wiki.exim.org/
