On 11/15/18 9:29 AM, Andrew Hodgson wrote:

Hi,

using Exim as MTA. Some of the NDRs to the -bounce address are coming in without Message-Id headers and Exim doesn't add one. When the bounce gets pushed via LMTP it gets spat out because of the lack of a Message-Id header and due to the Null return envelope Exim freezes the message. Has anyone seen this before and is there something that Mailman should be doing differently or should I configure Exim to generate a Message-Id before pushing via LMTP?

See <https://gitlab.com/mailman/mailman/issues/448>. This probably should be fixed, but in the mean time, if you can configure Exim to generate a Message-Id before pushing via LMTP, that would be a suitable workaround.

However, the larger issue is <https://gitlab.com/mailman/mailman/issues/343>. Until that is fixed, bounces aren't processed anyway.

-- Mark Sapiro <mark@msapiro.net> The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan