Why am I getting a “mail certificate name mismatch” / “cannot verify server identity” error?

This error usually occurs when a mail client is using a secure connection to the mail server under a custom hostname that hasn’t been covered by our Free SSL.

For example, if imap.yourdomain.com is being used to set up mail in a mail client but an SSL hasn’t been applied to the hosting package, then our mail servers default SSL won’t cover the imap.yourdomain.com hostname. This will result in the “mail certificate name mismatch” / “cannot verify server identity” warning.

To avoid the certificate warning you can:

  • Apply our Free SSL to your hosting package and wait 30 minutes. Read more about applying the free SSL here.
  • Use imap/smtp.stackmail.com for the mail client setup. Read more about setting up a mail client here.