Ok so hopefully I can explain this correctly.
About 3 months ago I start getting 100's of emails in my inbox every day that stated they were un-deliverable, well for one I rarely send out even 1 email a day. I look at the header info and they were being sent from an IP in Russia and they were using Outlook, I use thunderbird, so I thought I had been spoofed. I looked closer at numerous emails and found that some of these emails were not only going to people I did not know but to people that had sent me emails in the past (even though they were not in my address book), so this makes me think either my hosting company got hacked or I have something going on with my Windows 10 PC. So I promptly logged into my hosting account and changed passwords, the issue stop for a couple of weeks but then started back up again, this cycle has been going on for about three months. I had my hosting company change the spf record as well but this has not helped. My Hosting Company says it isn't them. I am to the point of maybe reinstalling Windows but that is days and days of work and tuning but I do not know what else to do. I don't want to get black listed.
I have Windows 10 Pro x64
I am using Thunderbird, latest release
I have scanned my PC With:
McAfee Real Protect
Emsisoft emergency Kit
Reason Core Security
MalwareBytes - Anti Root Kit
HiJack this and uploaded log to hijackthis.de
.....and a couple of other programs, but I can't seem to get this spoofing email hacking to stop!
Any help would be appreciated.