On 03/02/10 23:10, Daniel Pope wrote: > On 03/02/10 21:28, Martin A. Brooks wrote: >> People frequently confuse SPF for some kind of anti-spam magic bullet. > > I'm not confused about that. I'm specifically seeing an increase in bounces > returned to me of spam e-mail I haven't sent, which is what has brought it to > mind.
those will probably be organisations who don't check SPF records - they are assuming that all email from your domain (much of which may be simply faked addresses) originates from you and simply bounce it back to your MX record. In my experience some ISPs (btinternet, for example, which is provided by yahoo, IIRC) require SPF records before they'll accept email from you. I publish them for this reason only. If remote servers use them to check email from my domains, then so much the better. Until everybody has them they're not a reliable means of detecting faked emails. Stuart -- Stuart Sears RHCA etc. "It's today!" said Piglet. "My favourite day," said Pooh. -- Please post to: Hampshire@mailman.lug.org.uk Web Interface: https://mailman.lug.org.uk/mailman/listinfo/hampshire LUG URL: http://www.hantslug.org.uk --------------------------------------------------------------
