Never heard of it. Is it worth the money - probably not. Many of these programs claim to find lots of problems. I think that a cheaper and better option is to seek the advice of this forum about the snag.
The forum was my initial thought but I wondered whether the advice might be over my head. However, let's give it a go. The full error message is
An attempt to allocate memory failed. The system is out of memory. Account: 'pop3.blueyonder.co.uk', Server: 'pop3.blueyonder.co.uk', Protocol: POP3, Port: 110, Secure(SSL): No, Error Number: 0x8007000E
I can send but not receive. I've been using Virgin webmail for incoming mail but OE has put 185 old ones into my inbox. I delete them and they reapper next time I open up. I have emptied the sent and deleted folder items that were there when the error message first showed.