Please excuse my late reply also. I’ve updated to the latest version. It could be that the issue is with other people’s mail clients, as I checked each recipient key individually and they all have MDC enabled under features, and when sending to each individually I can decrypt, however when sending to them all I get the error, even if it’s a new email.
I will run some further troubleshooting as soon as I get the chance and will let you know if I find any new clues.
Steve on 25 Jun, 2018 11:36 AM
So the test to send yourself an encrypted + signed email works just fine?
My feeling tells me that there may be an issue with one of the keys. It would be important to play with the keys and see if you are somehow able to isolate when the problem occurs and what factors trigger it.