I'm trying to work out why I've started getting emails bounced back to me:
Delivery incomplete There was a temporary problem while delivering your message to mail@educationusingpowerpoint.co.uk. Gmail will retry for 47 more hours. You'll be notified if the delivery fails permanently. The response was: 454 TLS currently unavailable
I've done a bit of research online, and they suggest it could be the SSL that has expired. I've checked it, and I can't see any expired certificates.
Any other suggestions as to what I can try? It's doing it on 2 different sites on the same server.
UPDATE: When testing here, it fails miserably:
- https://ssl-tools.net/mailservers/educationusingpowerpoint.co.uk
- https://ssl-tools.net/mailservers/thecostumerooms.co.uk
- https://ssl-tools.net/mailservers/rieducazionevisiva.com
I'm just not too sure why though. Does anyone have any suggestions as to what to try? It was all working fine, so I'm assuming a LetsEncrypt certificate has expired, but I'm not sure which one / how to track it down
Thanks