A recent spate of unwanted email from Russia has perplexed some of our email customers. One particularly irritating spam model involves spammers using your email address as the ‘reply to’ address in their spam campaigns. They send their emails out to their massive lists – and if the mail bounces as many inevitably do, your email address will receive the bounces.
The issue for managing a mail server is that these bounces might have been legitimate bounces from legitimate messages that you sent out, so identifying them as the result of spoofing is likely to return false positives and cause inconvenience.
It may be little comfort, but we have found that they go typically away after a while. In the meantime, you may wish to set up a rule in your email client to send them automatically to your junk email file, for example, all mail with .ru (the Russian country code) in the from address.
Read more about filtering in your email client