CSF Blocking Email From Gmail
Posted: 09 Nov 2018, 23:57
I've decided to start a new thread because I haven't seen any current working solution, or activity on older threads regarding this issue.
I have spent countless hours over the last 3 months trying to solve this issue with email that is getting blocked which comes from Gmail:
DNS Error: 91335 DNS type 'mx' lookup of localinternetads.com responded with code SERVFAIL
I've read through 3 dozen CSF forum threads, as well as many more on cPanel. I've also asked cPanel support to look at the issue too, and no one can come up for a valid reason on why this is happening or how to fix it.
We've also setup a script to search for Google SMTP IP's and we compare/add/remove them on 24 hour basis to CSF ignore list.
The fact remains when CSF is active and I check DNS using https://intodns.com/localinternetads.com I see:
- Missing nameservers reported by your nameservers
- Mismatched NS records
- SOA record - No valid SOA record came back!
- MX Records Oh well, I did not detect any MX records so you probably don't have any and if you know you should have then they may be missing at your nameservers!
When I shut CSF off, I don't see any of these issues. We thought previously that because we have a few countries blocked like China, North Korea, etc, that this was somehow causing the issue. However, I see that IntoDNS is reporting this server provided the DNS lookup info: "h.gtld-servers.net was kind enough to give us that information. "
When I lookup h.gtld-servers.net I see that it is located in Virginia so there should be no reason it can't get these records.
When I check with https://mxtoolbox.com/SuperTool.aspx?ac ... n=toolpage even with CSF on, there are no DNS issues.
This is driving me nuts.
What in CSF is blocking DNS/MX records from lookup from Gmail & IntoDNS?
If anyone can help, it would be greatly appreciated.
Thank you,
Joe
I have spent countless hours over the last 3 months trying to solve this issue with email that is getting blocked which comes from Gmail:
DNS Error: 91335 DNS type 'mx' lookup of localinternetads.com responded with code SERVFAIL
I've read through 3 dozen CSF forum threads, as well as many more on cPanel. I've also asked cPanel support to look at the issue too, and no one can come up for a valid reason on why this is happening or how to fix it.
We've also setup a script to search for Google SMTP IP's and we compare/add/remove them on 24 hour basis to CSF ignore list.
The fact remains when CSF is active and I check DNS using https://intodns.com/localinternetads.com I see:
- Missing nameservers reported by your nameservers
- Mismatched NS records
- SOA record - No valid SOA record came back!
- MX Records Oh well, I did not detect any MX records so you probably don't have any and if you know you should have then they may be missing at your nameservers!
When I shut CSF off, I don't see any of these issues. We thought previously that because we have a few countries blocked like China, North Korea, etc, that this was somehow causing the issue. However, I see that IntoDNS is reporting this server provided the DNS lookup info: "h.gtld-servers.net was kind enough to give us that information. "
When I lookup h.gtld-servers.net I see that it is located in Virginia so there should be no reason it can't get these records.
When I check with https://mxtoolbox.com/SuperTool.aspx?ac ... n=toolpage even with CSF on, there are no DNS issues.
This is driving me nuts.
What in CSF is blocking DNS/MX records from lookup from Gmail & IntoDNS?
If anyone can help, it would be greatly appreciated.
Thank you,
Joe