You can configure these email settings in order to get notifications when users request content and when content you've requested is marked available by Plex.
This is the username you use to log in. Most of the time is your actual email or sometimes you can use just the first part without specifying
I think I don't really have to do write what a password is, do I? However, this is the password you use to log in to the email account. Not your Plex password, not your Petio password and not the password to your bank. I really hope you aren't using the same password across those 3 services...
This one is all dependent on who your provider is, if you self host your own email server I hope you know your SMTP server.
The port is again dependent on your provider. Below you can find a table for the most common providers with SMTP server, and their SSL/TLS ports
Create a new channel or use an existing one.
Give it a
Name and select the
Correct channel then copy
Webhook URL and save.
Go to Petio then Admin panel -> Settings. Scroll down until you find
Webhook URL -> Test -> Save.