Hi Andy, Could it be that your local DNS was reporting incorrectly ? Are you able to replicate this or was it just random ?
David Barker Mails Best Friend Email : [email protected] Web : www.mailsbestfriend.com Office : 866.919.2075 -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Andy Schmidt Sent: Thursday, October 22, 2015 7:52 AM To: [email protected] Subject: [MBF] MAILFROM detects no MX/A, even though it exists? Hi, I'm baffled. Have been using this test for years without problems. Yesterday I encountered the following for this one domain: 10/15/2015 22:35:22.515 q76f2000826a3f7e4.smd Doing envfrom type test on mardee.com. 10/15/2015 22:35:22.515 q76f2000826a3f7e4.smd Looking up MX/A record for mardee.com at 127.0.0.1. 10/15/2015 22:35:22.515 q76f2000826a3f7e4.smd Looking for Mx Record 10/15/2015 22:35:22.719 q76f2000826a3f7e4.smd DNS Report: [ex=0 rcode=3 ancnt=0 suc=1]. 10/15/2015 22:35:22.719 q76f2000826a3f7e4.smd Looking for A Record 10/15/2015 22:35:22.922 q76f2000826a3f7e4.smd Msg failed MX; testing A (MAILFROM mardee.com) [0 1 3 ] 10/15/2015 22:35:22.922 q76f2000826a3f7e4.smd There were no MX/A records. 10/15/2015 22:35:22.922 q76f2000826a3f7e4.smd DNS Report: [ex=0 rcode=3 ancnt=0 suc=1]. 10/15/2015 22:35:22.922 q76f2000826a3f7e4.smd Done with MX or A record What is the meaning of: [ex=0 rcode=3 ancnt=0 suc=1] (I know that ancnt is the number of answer records returned) When I log into the mail server, use nslookup on 127.0.0.1 (a local caching name server), the domain has both an MX and an A record (see below). I even went as far as clearing the NS cache, restarting DNS (and later the entire server) to eliminate any "odd" transient data somewhere. I then repeated the test with the same Declude failure - while nslookup is successful? C:\WINDOWS>nslookup > server 127.0.0.1 > set type=mx > mardee.com. Address: 127.0.0.1 Non-authoritative answer: mardee.com MX preference = 10, mail exchanger = mx.mardee.com mx.mardee.com internet address = 64.26.60.153 > set type=a > mardee.com. Address: 127.0.0.1 Non-authoritative answer: Name: mardee.com Address: 64.71.33.133 ############################################################# This message is sent to you because you are subscribed to the mailing list <[email protected]>. To unsubscribe, E-mail to: <[email protected]> To switch to the DIGEST mode, E-mail to <[email protected]> To switch to the INDEX mode, E-mail to <[email protected]> Send administrative queries to <[email protected]> ############################################################# This message is sent to you because you are subscribed to the mailing list <[email protected]>. To unsubscribe, E-mail to: <[email protected]> To switch to the DIGEST mode, E-mail to <[email protected]> To switch to the INDEX mode, E-mail to <[email protected]> Send administrative queries to <[email protected]>
