Mail server not responding; trusted certificate expired

Susan Hobbs

• October 26, 2026 01:03

I cannot get mail on any of my devices (PC, iPad, or iPhone). This is not a good situation. PC simply won't pull in mail; iPad and iPhone tell me the mail server isn't responding, that I have entered incorrect credentials (nope, they're correct), or that there is a "bad certificate format". HELP please. I need to be able to access my mail!!! - thank you!

• 

  bloatedstoat

  • October 26, 2026 02:01

  Hi Susan,

  With little information I'm asking some simplistic questions as it could be something as simple as a firewall blocking your IP. Are all of your devices connected to the same network? Eg: WiFi hotspot? If so, disconnect one device and try again.

  Are you able to connect to yourdomain.com/webmail and log in that way? If that page won't load it's very likely it is a firewall block and you'd need to contact your hosting provider to unblock your IP. 

  You could also try rebooting  your modem and see if your ISP provides a new IP, this will only work providing your ISP hasn't given you a static IP.

  Try the webmail option, hopefully your hosting provider has given you the option to access mail using Roundcube.

  Good luck.

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• 

  cPRex Jurassic Moderator

  • October 26, 2026 13:50

  It also sound like you only have access to your cPanel account, so it would be best to reach out to your hosting provider directly to have them fix this issue.

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