$Id$ (2019-06-14)
When you post a message via Mailman, and your dropbox is on Google Gmail, your own post doesn't appear in your Inbox; only remains in your "Sent Messages" box. You always had to add Cc:/Bcc: <yourself> when sending.
This is because Gmail coalesces messages having a same Message-ID, so it thinks the Mailman delivered message is duplicate of your Sent Messages, and discards the message arriving at Inbox. Mailman, by default, preserves Message-ID.
A solution is to attach different Message-ID by Mailman. This patch is already existing in Japanese version of Mailman version 2.1.14+j7.
The following setting will be available in mm_cfg.py
:
# Gmail treats Message-ID as uniqness of messages and discard later messages. # If we set this to Yes, then Gmail can show your original post and delivered # message as separate ones. It will then help you to know if the mail has # been safely delivered. USE_MAILMAN_MESSAGE_ID = No
USE_MAILMAN_MESSAGE_ID = Yes
to deliver your own
message to Inbox.
Bonus: You will get a customized Subject:, just like the others are receiving.
The following patch just adds this USE_MAILMAN_MESSAGE_ID function to vanilla Mailman-2.1.15 (one provided for RHEL/CentOS 7).