On 10/05/2022 14:34, Martin McCormick via Exim-users wrote:
It could be that smtp.suddenlink.net tightened their authentication requirements in an upgrade recently and this is what changed.
Have you asked them? -- 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/
