UPDATE: Well after some further investigation, it looks like I was slightly off. The spammers are indeed sending emails pretending to be me, which is resulting in thousands of bounced emails! The spammers are sending emails directly from their computer (IP 184.108.40.206) pretending to be me (making the emails look like they are coming from me). I am NOT sending any spam to anyone! They are NOT coming from me.
Looks like over the weekend my blog FollowSteph.com was targetted by spammers. Normally, this would mean I received an innordinate amount of email, but this time it was the other way. I’m still working with my host to figure out what’s happened, but from my quick initial inspection it appears that thousands of emails were relayed (or made to appear as though they were) through my mailserver with different FollowSteph.com sender and reply email addresses.
This morning I litterally had thousands of bounced emails in my inbox! Hopefully I’ll be able to resolve this issue very shortly.