If your mail client is not connecting to the mail server then please run the command below at the command prompt on this computer:
ipconfig /flushdns
After this, reopen the email client and try again.
If the problem persists, please ask to get the output of the commands below on your support ticket. The support team will investigate the issue and update you back as soon as possible:
ping mail.
telnet mail.
telnet mail.
telnet mail.
telnet mail.
tracert mail.
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