Re: [qmailtoaster] Spamdyke RDNS Question
Thanks, that's what I did. There clearly is something I don't understand about how denying reverse DNS works. I whitelisted the IP and not the domain. My logic is. Someone from anywhere could try to fake the "domain" so whitelisting that might expose the server. The IP address belongs to Comcast Business and is likely to never belong to anyone else. So even thought that IP might eventually belong to someone else, it's not likely to belong to a bad actor. Gary On 7/16/2021 11:42 AM, Eric Broch wrote: whitelist it in spamdyke On 7/16/2021 8:28 AM, Gary Bowling wrote: I have an issue with mail getting rejected from a specific domain. It's getting rejected due to Spamdyke and RDNS. Here's the line out of the log. Jul 16 09:02:41 vm1 spamdyke[32358]: DENIED_RDNS_RESOLVE from: ***@**nd.com to: ***@**ion.com origin_ip: 50.**.**.98 origin_rdns: 50-**-**-98-static.**.comcastbusiness.net auth: (unknown) encryption: (none) reason: (empty) From looking at the log. It says spamdyke is blocking it due to RNDS not resolving. But then on the same line it shows the "origin_rdns" and it looks like a valid reverse dns to me. Why is this getting blocked? Gary - To unsubscribe, e-mail: qmailtoaster-list-unsubscr...@qmailtoaster.com For additional commands, e-mail: qmailtoaster-list-h...@qmailtoaster.com - To unsubscribe, e-mail: qmailtoaster-list-unsubscr...@qmailtoaster.com For additional commands, e-mail: qmailtoaster-list-h...@qmailtoaster.com - To unsubscribe, e-mail: qmailtoaster-list-unsubscr...@qmailtoaster.com For additional commands, e-mail: qmailtoaster-list-h...@qmailtoaster.com
Re: [qmailtoaster] Spamdyke RDNS Question
whitelist it in spamdyke On 7/16/2021 8:28 AM, Gary Bowling wrote: I have an issue with mail getting rejected from a specific domain. It's getting rejected due to Spamdyke and RDNS. Here's the line out of the log. Jul 16 09:02:41 vm1 spamdyke[32358]: DENIED_RDNS_RESOLVE from: ***@**nd.com to: ***@**ion.com origin_ip: 50.**.**.98 origin_rdns: 50-**-**-98-static.**.comcastbusiness.net auth: (unknown) encryption: (none) reason: (empty) From looking at the log. It says spamdyke is blocking it due to RNDS not resolving. But then on the same line it shows the "origin_rdns" and it looks like a valid reverse dns to me. Why is this getting blocked? Gary - To unsubscribe, e-mail: qmailtoaster-list-unsubscr...@qmailtoaster.com For additional commands, e-mail: qmailtoaster-list-h...@qmailtoaster.com - To unsubscribe, e-mail: qmailtoaster-list-unsubscr...@qmailtoaster.com For additional commands, e-mail: qmailtoaster-list-h...@qmailtoaster.com
[qmailtoaster] Spamdyke RDNS Question
I have an issue with mail getting rejected from a specific domain. It's getting rejected due to Spamdyke and RDNS. Here's the line out of the log. Jul 16 09:02:41 vm1 spamdyke[32358]: DENIED_RDNS_RESOLVE from: ***@**nd.com to: ***@**ion.com origin_ip: 50.**.**.98 origin_rdns: 50-**-**-98-static.**.comcastbusiness.net auth: (unknown) encryption: (none) reason: (empty) From looking at the log. It says spamdyke is blocking it due to RNDS not resolving. But then on the same line it shows the "origin_rdns" and it looks like a valid reverse dns to me. Why is this getting blocked? Gary - To unsubscribe, e-mail: qmailtoaster-list-unsubscr...@qmailtoaster.com For additional commands, e-mail: qmailtoaster-list-h...@qmailtoaster.com
