I’ve always had extremely slow message deliveries when using delta chat , with me being on one chatmail server and the other party being on another one.

Am I doing something wrong? In the setup anywhere?

Currently using nine.testrun.org and have nobody else to test with lol, but just myself :P

Edit: I just tested with a friend using the same chatmail server and they were using another. Was pretty quick.

Made this two hours back, going to go and simulate this in the lab now, will get back with results later.

There is an IC tester in our lab and it says GOOD everytime I’ve plugged in. By die shots you mean like opening up the IC and viewing it under the microscope and testing it?