We limit 25 connections per your IP address.
If you are getting this error, then too many people in your office are using the POP/IMAP mail client to send emails.
Either wait until less people are sending email from your network, or login to webmail and send from there.
When sending email, you receive an immediate bounce such as the following:Subject: RE: XXXXXX -...
From your BlackBerry home screen, select the BlackBerry Set-up icon, then choose Personal Email...
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If you are trying to send emails and get a message like: 421, response: Unexpected failure,...
This message indicates that your email is not configured properly. Please double check you are...
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