On 07/02/2023 15:19, The Doctor via Exim-users wrote:
For Email Admins No connection could be made because the target computer actively refused it.
That bit there is the important info. Unfortunately, they didn't say what IP they tried to connect from, and unless you can infer anything else about them (such as IPs used by previous messages from them that you did accept), you need it to search for in your logs. You might have to contact the operator of tha system and ask. Then: search your Exim mainlog for connections from that IP. If there is one that matches the expected date/time, what was logged about it? If none such: do you run a firewall? What about its logs? -- Cheers, Jeremy -- ## 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/