SOLVED: TLS Negotiation failed, the certificate doesn't match the host., code: 0

s · Unread post by s » 2020-4-14 19:42

mpnourian wrote: ↑
2020-4-14 17:23
so far have not found a fix, and trying to reset or edit the sending e mail address did not work either.

You need to change the SMTP server name to match the name of the server where your email is hosted, and that server has to have an SSL certificate that Poople Gmail accepts. OK?

irving washington · Unread post by **irving washington** » 2020-4-14 20:30

Hi Santeri, thank you so much for these detailed instructions. I am having the same issue, just started this morning. We don't use GoDaddy, we use Westhost. In our cpanel we don't have a shared server host name in the URL like you showed for GoDaddy. I'm able to find a "server name," but it didn't work when I input it into the SMTP server field, I got the error: "DNS Error: 1238801 DNS type 'aaaa' lookup of [server name] responded with code NXDOMAIN 1238801 DNS type 'a' lookup of [server name] responded with code NXDOMAIN , code: 0"

I'm not very tech savvy so I am doing my best to follow all this. Hope you have some ideas for me. Thank you so much!

s · Unread post by s » 2020-4-14 20:55

irving washington wrote: ↑
2020-4-14 20:30
we use Westhost. In our cpanel we don't have a shared server host name in the URL like you showed for GoDaddy. I'm able to find a "server name," but it didn't work when I input it into the SMTP server field, I got the error: "DNS Error: 1238801 DNS type 'aaaa' lookup of [server name] responded with code NXDOMAIN 1238801 DNS type 'a' lookup of [server name] responded with code NXDOMAIN , code: 0"

Westhost is writing on their instructions that "your_server_name_can_be_found_in_cpanel_on_the_left_side". Can you find it? What is the server name?

MVRKVBV · Unread post by **MVRKVBV** » 2020-4-14 22:19

Works for me with no issues now.
Thank you so much seriously!!! You are a hero.

karin@ · Unread post by **karin@** » 2020-4-14 22:20

Hi. Been having same issue just this past week connecting my college account and Gmail. Never happened before. Was always able to send normally. Now when I send through college SMTP, emails bounce back and don't get delivered. And this error message comes up. Any fix?

irving washington · Unread post by **irving washington** » 2020-4-15 00:12

The server name that I find is sl-508-11. This is what I entered into the gmail field for SMTP server, and it gave me the error message. (I'm not sure if this is the right one...

1dre203 · Unread post by **1dre203** » 2020-4-15 02:20

Thank you so much, this is the most valuable information I have come across so far better than GoDaddy's service. Unfortunately for me, the problem does not seem to go away. I am getting this after following your steps "Authentication failed. Please check your username/password.
Server returned error: "DNS Error: 9952402 DNS type 'aaaa' lookup of https://sg2plcpnl0131.prod.sin2.secureserver.net:2083/ responded with code NXDOMAIN 9952402 DNS type 'a' lookup of https://sg2plcpnl0131.prod.sin2.secureserver.net:2083/ responded with code NXDOMAIN , code: 0"

Any help will be greatly appreciated thank you

PrimeX · Unread post by **PrimeX** » 2020-4-15 03:19

Thank you so much. Could you please also suggest some good web hosting provider.

s · Unread post by s » 2020-4-15 04:05

1dre203 wrote: ↑
2020-4-15 02:20
Thank you so much, this is the most valuable information I have come across so far better than GoDaddy's service. Unfortunately for me, the problem does not seem to go away. I am getting this after following your steps "Authentication failed. Please check your username/password.
Server returned error: "DNS Error: 9952402 DNS type 'aaaa' lookup of https://sg2plcpnl0131.prod.sin2.secureserver.net:2083/ responded with code NXDOMAIN 9952402 DNS type 'a' lookup of https://sg2plcpnl0131.prod.sin2.secureserver.net:2083/ responded with code NXDOMAIN , code: 0"

Any help will be greatly appreciated thank you

You need to remove ":2083/" from your server address as I mention in my instructions. Try sg2plcpnl0131.prod.sin2.secureserver.net and it should work fine.

Owen · Unread post by **Owen** » 2020-4-15 04:14

Can confirm that this works for crazydomains as well.

s · Unread post by s » 2020-4-15 04:27

irving washington wrote: ↑
2020-4-15 00:12
The server name that I find is sl-508-11. This is what I entered into the gmail field for SMTP server, and it gave me the error message. (I'm not sure if this is the right one...

According to their instructions here, your correct SMTP server should be

Code: Select all

sl-508-11.slc.westdc.net

It has proper SSL certificate and Reverse DNS.

If this does not work for you, I need to know what is the web address of your website to dig deeper. Have you tried using chimail.westhost.com ? It is mentioned here.

jrey · Unread post by **jrey** » 2020-4-15 05:00

Guest wrote: ↑
2020-4-12 06:17
Same principle worked with a Crazy Domain url. Thanks for the pointer!

Owen - What did you copy from cpanel? All of the text or up to index.html? I can't seem to get it to work?

Guest · Unread post by **Guest** » 2020-4-15 07:15

Thank you so much sir. Finally its resolved.

iceberk · Unread post by **iceberk** » 2020-4-15 08:48

Hello,

I have the same problem but my hosting has no cpanel. How can I solve the problem?

Thank you.

s · Unread post by s » 2020-4-15 10:04

iceberk wrote: ↑
2020-4-15 08:48
I have the same problem but my hosting has no cpanel. How can I solve the problem?

What is your hosting provider? Have you checked their documentation?

SGPascoe · Unread post by **SGPascoe** » 2020-4-15 12:01

Hi guys, this seemed like a promising lead, as we're having the exact same problem, however, our cpanel just shows our domain URL "companyname.com:2083". However using the URL as the SMTP results in :

"Server returned an error: "TLS Negotiation failed, the certificate doesn't match the host., code: 0""

irving washington · Unread post by **irving washington** » 2020-4-15 15:19

Santeri wrote: ↑
2020-4-15 04:27

According to their instructions here, your correct SMTP server should be
Code: Select all
sl-508-11.slc.westdc.net
It has proper SSL certificate and Reverse DNS.

If this does not work for you, I need to know what is the web address of your website to dig deeper. Have you tried using chimail.westhost.com ? It is mentioned here.

It worked!!! Thank you SO MUCH! You are an angel, much better than the tech support team for most software we use, and you are just doing it out of the goodness of your heart. Blessings to you my friend!!

ebr · Unread post by **ebr** » 2020-4-15 16:03

Same root problem with Network Solutions mail. No cPanel to use for workaround. To those that found success do you have any suggestions? Domain for digging purposes - morphtech.com, smtp.morphtech.com, smtp.morphtech.com.netsolmail.net

The previously working settings for SMTP Server resolve to IP address 205.178.146.235 and it as indicated above it appears the full SMTP is smtp.company.com.netsolmail.net but I am unable to find success using this as the server. Not finding reverse MX records for 205.178.146.235 either. I've tried various combo's in Google and none take. The only patch, which is not acceptable for me, if using port 25 and selecting an Unsecured connection. It's a workaround for those unable to send email at all, but I wouldn't use it for anything of mine.

For the no-cPanel gang please bless us with the knowledge

s · Unread post by s » 2020-4-15 17:08

ebr wrote: ↑
2020-4-15 16:03
Same root problem with Network Solutions mail. No cPanel to use for workaround. To those that found success do you have any suggestions? Domain for digging purposes - morphtech.com, smtp.morphtech.com, smtp.morphtech.com.netsolmail.net

The previously working settings for SMTP Server resolve to IP address 205.178.146.235 and it as indicated above it appears the full SMTP is smtp.company.com.netsolmail.net but I am unable to find success using this as the server. Not finding reverse MX records for 205.178.146.235 either. I've tried various combo's in Google and none take. The only patch, which is not acceptable for me, if using port 25 and selecting an Unsecured connection. It's a workaround for those unable to send email at all, but I wouldn't use it for anything of mine.

For the no-cPanel gang please bless us with the knowledge

I wrote detailed explanation of what is wrong with Gmail. I hope that could help you to figure out the issue with your hosting provider. You can find it here: EXPLANATION: TLS Negotiation failed, the certificate doesn't match the host., code: 0.

That is the best I can do without knowing exactly which hosting company and package you are using etc. I have not used Network Solutions for over 10 years and their systems have probably (at least I hope so) evolved a lot since then.

Ali · Unread post by **Ali** » 2020-4-15 19:26

Santeri wrote: ↑
2020-4-11 13:18
GoDaddy "award-winning support team" was again lying to me, so I wasted 24 hours by waiting their "solution" instead of finding the fix by myself right away. Anyway, I found a permanent solution for the issue. It is easy, free and does not involve GoDaddy which means it can be done right away instead of waiting forever for nothing to happen. Here are the steps for fixing Gmail on GoDaddy.

Login to your GoDaddy account

Select All Products and Services

Click Manage in Web hosting section

Click cPanel Admin

Copy host name from cPanel URL (shared server host name is between https:// and :2083/)

Paste the host name to Gmail settings Accounts and Import/Send mail as/edit info/SMTP Server and click Save Changes
What made the issue more complicated was that both gmail and GoDaddy are to be blamed. Gmail has changed how they check SSL certificates and GoDaddy support is exploiting the issue by trying to peddle useless products for their clueless customers. Please let me know if you are still having issues after applying my fix.

Happy hacking,

Santeri

Thats awesome Sir.
Helped me while i was searching for the solution for one of my client.

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SOLVED: TLS Negotiation failed, the certificate doesn't match the host., code: 0