I have a problem with the mail (not gmail) app on my HTC Sensation, that I'm guessing is part of HTC Sense 3. I'm using a server that has an untrusted certificate, and every time I try to refresh my email a dialog requesting the certificate to be accepted pops up. The problem is that when I try to send an email from that account the messages get stuck in the outbox until I manually refresh the mail forcing the certificate to be accepted again.

Is there any way of storing the known/already-accepted certificates for the mail app?


  • Option 2 seems most promising. And another method.
    – brandeded
    Sep 27, 2011 at 1:26
  • Did you check whether that would work with server certificates? In both cases, topic are Certificate Authorities (CAs) -- which are the ones who sign those server-certificates the OP has trouble with. Would be interesting to know whether one of the described methods is applyable here.
    – Izzy
    Aug 6, 2012 at 9:31

1 Answer 1


I'd suggest switching to an alternative mail app -- K-9 Mail probably is a good choice. I use it for about 2 years now with a mail server having an "untrusted" (self-signed) certificate, and never experienced what you describe -- so this should solve your issue.

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