From the RealWorld archive · Published 2011-10-15.
The SSL secure certificate for users of IMAP and POP email (Exchange email users are not affected by this) may notice a message in their email client appearing. This is to confirm that the certificate has been changed - to be fully compatible with the new Apple iOS5 software for iPhone and iPad. If you see the following message, it is safe to choose 'Connect' :
Additionally you can choose to 'Show Certificate' and 'Always trust "secure.emailsrvr.com" :
If you have any issues relating to this certificate update, please contact us.