ok here is what I see.
1st) you are running your mail server on an apache server?
2nd) it is being hosted by scarlet.webhostingireland.ie
I can see two potental issues
1st) your mx record points to blossompark.net not mail.blossompark.net. I think that is issue number one.
2nd) the configuration of the site doesn't seem to be correct. Since I can't see the back end I cant help you too much on this one. What I can say is that I find no records for imap.blossompark.net and no records for smtp.blossompark.net. I can also see that with a little of effort someone wearing the wrong colored hat can make the server into an open relay. This fact screams that the imap server is not configured correctly on the back end.
Does your hosting company have any support techs that can help you with the back end stuff?
