@Garrett-Dark You should not use those ports as they are insecure.
You can find all the information you need in the setting up email on a device section here: https://www.virginmedia.com/help/broadband/manage-email-account
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Thanks for posting in regards to your email account and settings, we appreciate you raising this via the forums.
We're you able to follow the advice in the thread posted by Graham_A and resolve the issue?
Let us know.