Not working on Ubuntu digital ocean server.

[GhulamMohiodin6544]

Giving status true but Not working on Ubuntu digital ocean server.
I am using php version 7.4 and php mailer class version 5.1

[XL-2000]

1. upgrade your PHP version; you are years and years behind!
2. Upgrade your PHPMailer version; you are years and years behind!
3. You have literally posted NOTHING that would enable others to help you, provide any and all relevant logging and code

[Synchro]

"Not working" doesn't give us anything to go on, and you ignored the advice in the issue template, so you'll need to read the docs and try a bit harder.