Cox email not being delivered to Protonmail
My Cox emails are being bounced back when sent to friends with Protonmail. All other recipients receive the emails with no issue and my Cox account can receive emails from Protonmail, just outgoing ...
Forum Discussion
@Krash
The error is indicating that our mail system cannot find theirs. A quick check of their website says they provide secure email hosting out of Switzerland however when I investigate it appears it's actually routed through China. That being the case I suspect something unusual is going on with their hosting records.
> protonmail.com
Server: 68.105.28.13
Address: 68.105.28.13#53
Non-authoritative answer:
Name: protonmail.com
Address: 185.70.40.182
> set type=mx
> protonmail.com
Server: 68.105.28.13
Address: 68.105.28.13#53
Non-authoritative answer:
protonmail.com mail exchanger = 10 mailsec.protonmail.ch.
protonmail.com mail exchanger = 5 mail.protonmail.ch.
Authoritative answers can be found from:
-Chris
The error is indicating that our mail system cannot find theirs. A quick check of their website says they provide secure email hosting out of Switzerland however when I investigate it appears it's actually routed through China. That being the case I suspect something unusual is going on with their hosting records.
> protonmail.com
Server: 68.105.28.13
Address: 68.105.28.13#53
Non-authoritative answer:
Name: protonmail.com
Address: 185.70.40.182
> set type=mx
> protonmail.com
Server: 68.105.28.13
Address: 68.105.28.13#53
Non-authoritative answer:
protonmail.com mail exchanger = 10 mailsec.protonmail.ch.
protonmail.com mail exchanger = 5 mail.protonmail.ch.
Authoritative answers can be found from:
-Chris
Thanks for the response, Chris. Would you have any idea why only Cox emails are not being delivered? I can send emails with no issues from other domains (gmail, yahoo, earthlink, etc.), plus others I know can send emails with no issues. It seems to be an issue with the Cox domain only. Thanks.
