SMTP invalid response code

pfranc

Hi all, running OsTicket 1.12.6 on CentOS 7 with PHP 7.3 and MariaDB 5.5
I noticed a bunch of Mailer Error and Delivery Email Error (i don't know if this is the exact name, my installation is translated) which means both notification to user and reply to tk didn't send. All this happened suddenly in a range of 5 days. I've done tests and email works fine, the smtp is external and i dont manage it, so i'm unable to get any log-
The question is about the error OsTicker logged:

Failed to set sender: noreply@blabla.com [SMTP: Invalid response code received from server (code: -1, response: )]

Now....as far as i know code -1 is not an SMTP error code, maybe i'm doing something wrong?

ntozier

Sounds like it tried to send an email and the mail server responded with an invalid response (like the error states) and it didn't know what to do with it. You might want to check your mailserver logs to see if there is more detail there.

pfranc

ntozier that's what I think too. Unfortunately I can't read or investigate logs on the mail server, I just wonder now if those mails have been queued and sent or not.
Because if the server didn't send I should check the timestamp of the error on OsTicket log, match it with a ticket closed at the same time, reopen it and close it again....
Any hint from you ntozier? Save me please 😁

ntozier

osTicket does not have an email queue. It tried to send, and if it fails tried to send using phpmail. If both fail then it gives up.

You would have to look at the timestamp of the error, and then compare it to the last updated on the ticket.
You could probably use Custom Queues to add the last updated column to your display if you dont already have it. Or you could run a sql query to pull ticket#, and last updated date from the ost_ticket table.