Folks, I'm coming to you guys as a last resort. I have an MTA whose IPv6 address has found its way onto the Spamhaus SBL (note that the IPv4 address is clear and always has been). I've delisted it but it's come back. I've no idea *why* it has ended up on the SBL: it isn't an open relay, it's got the right SPF and rDNS records, postmaster and abuse go to real people (me) and there are no complaints, I can't see anything in the email logs. Trying to contact Spamhaus is an exercise in futility; their postmaster responds but isn't very helpful (just refers me to the delisting procedure).
Does anyone have any advice? Thanks Nigel (Titley)
