Mark Sapiro wrote:
If you mean can you add a '#' line that won't be part of the actual rendered template, the answer is No.
OK, thanks for the clarification.
Initially, I created the template files with owner set to "root". This resulted in postings to lists getting stuck in mailman-core. It's vital that these files are owned by user "mailman". Once I changed the owner of the file to the latter, everything worked. I don't think they need to be owned by 'mailman' as long as they are readable by 'mailman'
Yes, your formulation is a more accurate statement than mine (I could have instead simply relaxed the permissions on the files to make them world-readable).
The effect of the template files not being readable by user "mailman" was interesting. Hundreds of lines like the following got written to mailman-core's var/log/smtp.log file at the rate of 4 per second:
Jul 23 17:09:54 2020 (25) Using agent: <mailman.mta.bulk.BulkDelivery object at 0x7fdf9e7b5f28>(the hex number was different each time).
Having excessively restrictive permissions on the template files is a silly - but easy enough - mistake to make. If it were possible to add it to Mailman 3, a more descriptive logging message could point others who make it in the right direction, perhaps. I spent a long time trying to figure out why messages weren't getting sent out from Mailman core, and in the end it was luck in form of a colleague's suggestion about file permissions that got me out of the rut.
Thanks for the great support,
Stephen Kenny