Have you triggered the BadMailFrom Spam Trigger?
- You have sent a large number of emails from an account and the recipients have marked some of this email as SPAM
- Your account has been hacked and a spammer is sending emails from your account
The BadMailFrom filter stops SPAM before it gets ‘too’ serious. The filter is automatically removed after a short period of time. If the problem persists the lock will be in place for a longer period.
The recommended actions you should take are:
- Ensure you are sending emails only to recipients that are expecting the email
- If you are sending to a large number of recipients try spreading out the mailshot (over a number of hours or days)
- If you did not send a quantity of outgoing mail then change your mailbox password straight away.