So – first up I assume that the error log messages were from an earlier attempt to process mail as the server name and the port are completely different to the settings image. So perhaps we can discount that and concentrate in the settings.
One of the problems with the php routines is that they are extremely unhelpful about what is wrong. You just get a success or failure value returned which ain’t a lot of help when trying to debug the issue. So – let;s start with a few questions…
110 is the common POP3 port but I must admit to curiosity as to why you were trying 993. which is more like a gmail port number?
Note also that your server is named pop3.xxx and not mail.xxx which is again, not so common but was one tried in the error log. So which is it?
But my main question here is that you have a mail server running at ‘netflash.net’ yet the mailbox showing in the connection failure is at ‘protrak.cc’. How can these be different?