Lars Dvbdahl wrote:
Currently, SPF only requires one DNS record to work from the sender, i.e.
it does not require software upgrades or software replacements. This makes
it possible to make a lot of domains provide SPF protection, which again
makes it useful to implement SPF filtering.
But currently SPF requires that forwarders install new software for doing
SRS. Better let those people upgrade the software who have heard about SPF
(those who publish SPF records and those who use SPF records to filter mail)
instead of letting it do by forwarders who might not know what SPF is.
Roger