O365 Email stops working after a few hours. Once reauth works again

osantamarina

this is the 3rd time that happens. Does not last an entire day. If I reauthenticate the OAuth it starts working again for a few hours. The interesting part is that its only for sending emails. Still receiving emails that open tickets.
Error from OSTicket dashboard:

Mailer Error
Unable to email via Sendmail Unable to send mail: mail(): Failed to connect to mailserver at "localhost" port 25, verify your "SMTP" and "smtp_port" setting in php.ini or use ini_set()

So I updated the php.ini
originally had this:
SMTP = localhost
smtp_port = 25

Modified to:
SMTP = outlook.office365.com
smtp_port = 587

Then get this error:

Mailer Error
Unable to email via Sendmail Unable to send mail: mail(): SMTP server response: 451 5.7.3 STARTTLS is required to send mail [MN2PR15CA0043.namprd15.prod.outlook.com 2024-10-11T15:26:20.479Z 08DCE9AB2383BB83]

So after this error decided to Reauthenticate once again and just like before, starts working again.

What am I missing here?

Thanks!

KevinTheJedi

osantamarina

Please read the requirements before installing/upgrading; PHP 8.3 is not yet supported. Downgrade to PHP 8.2.
Do you have a cron job/scheduled task running to auto fetch and auto-renew the tokens?
Is the email a real email or a shared mailbox/alias/resource email where the authorization username (email) is different than the address in osTicket?

Cheers.

osantamarina

hi Kevin,
Thanks for your prompt response. in the order of your questions:

OK I guess I can do that.
I do have a scheduled task. Are there more settings to this? I did not see the auto-renew token option/requirement. Maybe this is what I'm missing? I am just running scheduled task to execute cron.php
The email is a real licensed mailbox.

So should I uncheck the Fetch on auto-cron box from my osTicket settings? attached picture of what I have.
And then need to add some code inside the cron.php?

Thanks again!

KevinTheJedi

osantamarina

Calling cron.php is all that’s needed. The system auto-renews the token upon expiration and use. It uses the Refresh Token to request a new Access Token and new Refresh Token.
Okay then I’m not sure why it’s not auto-renewing for you. I would just suggest that you make sure you have the latest plugin installed.

Yes you should uncheck auto-cron. If you have a schedule task then just keep the Enable checkbox enabled and disable the auto-cron one. No, you do not need to edit any file except the one in the plugin.

Cheers.

osantamarina

KevinTheJedi happened again. had to manually re-auth. Its ok for the account to have 2FA right?
Any ideas where I can start to troubleshoot this?

osantamarina

UPDATE: I've downgraded php to 8.2.24 and can confirm the token is now being automatically renewed.
Many thanks for the help KevinTheJedi