It's funny, I have SMTP working with no problem but I can't get osTicket to check for email from a Google account to save my life right now! Sounds like you are in the opposite position.
kevinmcox

- Joined Feb 18, 2022
- 0 best answers
- Edited
carterspear Google only cares about the IP address making the connection to the mail server. So you might be able to just allow-list your proxy server for relay.
If you are authenticating SMTP with a specific email address / password, I believe you need to Enable Less Secure Apps for that account: https://support.google.com/accounts/answer/6010255?hl=en
Alternatively since it appears you are a Google Workspace customer, if your osTicket install has a static IP you could allow-list it for the SMTP Relay Service to send without authentication: https://support.google.com/a/answer/176600?hl=en
On the PHP version note, I had a plugin problem that was resolved by downgrading to PHP 8.0. The Release notes for osTicket 1.16 specified PHP 8.0 or higher, but it was changed in the osTicket 1.16.1 release to specify 8.0 only.