[tehbeard]

Not the author, but have some experience with the mailgun api. AFAIK there's no sla/guarantee/redelivery for the webhooks, and they have to be setup for each domain. Looping the account to fetch all logs for the last 48 hours is relatively simple and robust.

[jeroenbourgois]

OP here (actually, he is my co-founder, same company). I can confirm this experience, looping seems to work.

In our own setup, we fetch data for the last 24h twice a day and then just insert everything. We have a db constraint on the message ID mailgun sends us, so only news ones will be persisted. We aren't even bothered with filtering before inserting, the db constraint does the trick.