>unavoidable in that case. I don't know how widespread this usage of >mail sent (not received) with domain parts that map onto wildcard >MXes with arbitrary subdomains is. I suspect it doesn't actually happen.
Sure it does: http://www.panix.com/help/plusaddr.html I agree that it's more common to invent per-correspondent addresses to subscribe to mailing lists, but then to get your message posted, or to adjust your mailing list settings, you do have to be able to send mail from that address. All of the funky things that people do with tagged subaddresses map directly onto subdomains set up like Panix's ([EMAIL PROTECTED] -> [EMAIL PROTECTED]) and I suspect we'll be seeing more of them rather than less in the future. I think I still see a certain amount of mail from places that let you use a workstation cluster and put the workstation name into the return address. I suppose that the number of workstations in a cluster is unlikely to be so large as to make the corresponding DNS zone unwieldy, but up to now you could set up your wildcards appropriately so you just plug in a new workstation and the mail works. R's, John _______________________________________________ NOTE WELL: This list operates according to http://mipassoc.org/dkim/ietf-list-rules.html
