Q: 100s of undeliverable e-mails: Virus or what?

After a recent update of virus definitions a "Trojan horse" virus was
detected and removed from my entire system.

But I then noticed that the problem was back, if it had ever disappeared.

QQQQQQQ: Any idea what is going on?



This is the problem:

This is a sample of the from: and subject body text (which may be coming
from my computer because it all looks suspiciously similar)  pertaining to
the hundreds of messages I am supposably sending.  Do I have a virus, or
what.  I am not attempting to send these e-mails in the first place.  This
has occurred since I set up my e-mail account, and everything else recently.
I can send and receive to and from myself and others, and news, and internet
works.

critical update

undeliverable

returned mail

bug letter

error notice

undeliverable messa