How to retry processing inbound messages on postmarkapp
In order to retry an inbound message that timed out, take a look at the Postmarkapp API documentation here.
First, we need to get the server API token that can be found on the credentials page by going to <your server> > Credentials.
Second, we need to get the message IDs which is the hash looking thing in the message URL:
Finally, we can use curl to retry the message: