FBL messages not triggering Feedback logs

KumoMTA Troubleshooting
1

FBL messages from hotmail are not generating Feedback logs. Instead I’m recieving a Reception and a Delivery log like any other inbound message. FBL is configured to be sent to an address on fbl.ahsend.com, and the listener domain configuration for that domain is:

['fbl.ahasend.com']
log_oob = true
log_arf = true
relay_to = true

My smtp_server_message_received event handler sets a custom campaign for all inbound messages including FBLs (By “inbound”, where the recipient - not the sender - is from a domain registered with us), and then get_queue_config makes a custom_lua queue config for these “inbound” messages which delivers the message data to an HTTP endpoint. Could this be causing problems?

I’m sure the setup explained above used to work before - I have suppressions and unsubscriptions logged in the system caused by FBL messages and Feedback log records. I’m not sure if something changed in KumoMTA or maybe the FBL from Hotmail somehow doesn’t match what Kumo expects?

Can anyone confirm they are receiving Feedback log records for FBL messages from staff@hotmail.com?

3

Check the format of those emails, we’ve had other users where the emails stopped being ARF and started being regular format with attachments.

4

Yep, looks like there’s no message/feedback-report part in the email, they just attached the original message as a message/rfc822 part :man_facepalming:

5

Yea I’ve been in the same boat. If you have updated the JMRP feed settings (e.g. adding an IP), you most likely changed the format setting unwillingly

6

You have to mail support to fix it, it’s a bug in their new UI I believe