Email warning message...does this mean my bt email...

Question

I had a spate of these email warning messages (oddly enough AFTER bt had prompted me to change my password).  Then I had a complaint from a friend about receiving emails - purportedly from me - promoting some website.  Ran a virus scan.  All quiet.
I've just got another one.
"This message was created automatically by mail delivery software.
A message that you sent has not yet been delivered to one or more of its
recipients after more than 48 hours on the queue on lserver.vanessacox.com"
which is different from the previous message, which was:
"This message was created automatically by mail delivery software.
A message that you sent has not yet been delivered to one or more of its
recipients after more than 48 hours on the queue on mercury.anticlown.com"
Does this mean my account has been hacked twice now??  Or what?  And what should I do about it? 
Help?
Thanks.
**Here today....blonde tomorrow**

Answer 1

The email that you had "from BT", areyou sure it was from BT. Did you click on links within the email to change your passwrod. If you did it was possible that the email was a phishing email and that by doing the password change you gave the hackers access to your email account and all you contacts details.
You should have a read through this link and follow the instructions and check that there is no forwarding email addresses set up etc. Change your password and security questions.
http://bt.custhelp.com/app/answers/detail/a_id/39411/?s_intcid=con_L1:Technical help:L2:Email or security:sab:locked
The hacker will now have your contacts details and can use them at will and spoof your email address which will make any emails they send appear as though they have come from you. There is not much you can do about that now other than start using a new email address and tell your contacts to delete any emails that come from your hacked address.