slimjim002

Thank you both very much for getting back to me regarding the server 500 issue.
It does sound like something other than plugin updates then as I assumed, unfortunately there is a risk it will pop up again if that’s the case.

I did also investigate the memory limit which is set to 256mb so hopefully that should be fine.

I suspect its a change to the internal server that my I.T. team have done…

Fixed!

The issue was in fact with the class-phpmailer.php file. Since the upgrade all smtp information was missing from this file.

Copied old file (before upgrade) to replace incorrect one and it now works again, although smeg knows what caused this file to change from the original.

Ok I will check the username and password with my I.T dept again, however the copy of the files and database before the upgrade show the same username/password so they should be correct.

Unfortunately I don’t have the permissions to look into the webmail, but have not needed to before.

I still think that the issue may be to do with one of the core files, such as the class-phpmailer file mentioned in the first post.

Guess I will have to keep looking for a solution…

Hi, thank you for getting back to me and sorry about the late reply.

If by ‘from email domain’ you mean the from email address then this is [email protected].

The SMTP server is an internal IIS 7.5 server, although i’m not sure if that’s what you mean?

Cheers