I noticed a problem with bounces in PGLister: when an address is newly added to a list, it is supposed that all former emails were properly delivered. All prior emails are marked as "Delivered to remote server", which is not the case as the address was not subscribed yet (they should not appear at all).
As a result, a bouncing address will not immediately be flagged as a bounce.
A way to fix that could be to add an "added_date" field to e.g. list_subscriberaddress.
This may be intentional behaviour as fixing it requires adding a field, for what is pretty much a corner case (one can expect a newly added address is not immediately bouncing). Do you think a fix is worth implementing?
Here's a very late comment on this.
I'd consider it a corner case, so I'm not sure it would warrant this in itself. But it's not intentional behavior that I'm aware of.
That said, tracking when a subscription happens could also be useful for other cases I think it might be worthwhile doing.
Side-question regarding bounces: I did not find any process in the codebase that automatically unsubscribes bouncing addresses (bouncehandler.py leaves this as "run separtely"). Is this expected to always done manually?
Correct, there is no code in place for that.They show up on the admin dashboard for manual handling.