I'm using the latest osticket version 1.17.2 with the oauth2 plugin.

I'm having problems with setting outgoing email (smtp), which shows an error:

I've changed port 465 to 587 but it's still an error.
did anyone experience something like this?

I am using the latest version of OSTicket. Its really amazing with no issue at my end.

    jokokendil

    Seems like you are having DNS or SSL issues. Essentially, something in the certificate is not matching up.

    Cheers.

        jokokendil

        Are you using a self-hosted server or using a hosting provider?

        Also, a bit of google results on this error shows that the culprit is SMTP Restrictions from the host if you are using a shared host.

        Cheers.

            KevinTheJedi
            I use a hosting provider (shared host).
            I've also searched on Google about smtp restrictions, and it's been confirmed from the webmaster that it's been disabled.

                jokokendil

                Well essentially from the error it looks like when it does a lookup on smtp.gmail.com it’s returning a certificate for u-srv1.warnahost.com which should not happen.

                Cheers.

                  Interesting. It sounds like a dns issue to me.
                  Can you get to a cmd prompt on the host and do and nslookup on smtp.gmail.com?

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