I’ve killed the spam. Having run Spam Guardian on the grayblog server for some time now, and having refined the settings based on the result of over 2500 messages passing through, I’ve now set it to "drop" all messages that it considers to be spam. Suddenly, my inbox is very quiet, but it should mean that I won’t have a gazillion junk mails waiting for me when I get back from the honeymoon.
So, if you send a mail and don’t receive a reply, you’ll know why. However, I think that is extremely unlikely unless you put lots and lots of links in the body, this being one of the criteria for assessing the spam-ness of a mail.
separating the wanted from the unwanted