Why am I being shown a server not reachable error while migrating using POP/IMAP?

Why am I being shown a server not reachable error while migrating using POP/IMAP?

If you're getting a server not reachable error, there might be issues with the server details that you entered (server name, server port etc.) while adding the migration details. Make sure that you enter the correct values before you start the migration. Learn more.

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                                                                                                    If you receive an authentication error, make sure that you've entered the right credentials for the account, and that the user hasn't changed the password of the source account while the migration is in progress. Refer this help page for more ...
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