As part of my efforts to track and control spam, I bought a domain and created a unique alias to give to every distinct company with which I do business. For example, the address I gave to my bank might be [EMAIL PROTECTED], while the one I gave to an online bookseller might be [EMAIL PROTECTED]
I hope to use this to cut down on spam and phishing attempts, because I could identify legitimate mail by virtue of having the correct sender address (or at least domain) and recipient. That is, mail from [EMAIL PROTECTED] to the [EMAIL PROTECTED] is very likely mail from my bank, but mail from [EMAIL PROTECTED] to that same address is not. Likewise, mail from [EMAIL PROTECTED] to [EMAIL PROTECTED] is invalid. Is there any way to set up spamassassin rules to mark messages on this basis? Apologies in advance if this has come up before, but I had a hard time thinking of keywords to search the archives.
