Mail Related Oddity

Early in January, I migrated my domain mail server from Hostedmail to Gmail Apps, because it was clearly able to do a significantly better job of handling the 150 odd junk mails I was getting daily. Although I'd changed the MX record setting so that all incoming mail would go to Gmail, I left a link to the Hostedmail server so that I could log into the web interface (but not from work - for some reason they made it impossible to do so when they upgraded their software) just in case anything went wrong. Nothing went wrong, but having just logged in, imagine my surprise to find that there are at least 200 new junk mails received since I migrated, some as recent as this morning. As there is no possible way they could have come in from the outside, I have to conclude that Hostedmail are deliberately injecting junk mail into their users' accounts in order to promote their junk mail filters. Ironically, none of the mails had actually been caught and tagged by their junk mail filter, as they were all just sitting there in my Inbox. Yup, looks like migrating to Gmail was a sensible choice alright!