Rich Shepard <rshepard@xxxxxxxxxxxxxxx> writes: > Message rejected due to: SPF fail - not authorized. Please see http://www.openspf.net/Why?s=mfrom;id=rshepard@xxxxxxxxxxxxxxx;ip=217.196.149.56;r=<UNKNOWN> Hmm, I see appl-ecosys.com is advertising this SPF data: $ dig appl-ecosys.com txt ... appl-ecosys.com. 1159 IN TXT "v=spf1 ip4:50.126.108.78 -all" appl-ecosys.com. 1159 IN TXT "v=spf2.0/pra ?all" Is it possible that you're sending the list request mail out of some other IP address? regards, tom lane