# Challenge failed only for domain mail.opobir.com

**URL:** <https://community.letsencrypt.org/t/challenge-failed-only-for-domain-mail-opobir-com/147494>\
**Category:** Help\
**Created:** [March 15, 2021, 4:10pm UTC](https://community.letsencrypt.org/t/challenge-failed-only-for-domain-mail-opobir-com/147494 "2021-03-15T16:10:17Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![demir6693](https://avatars.discourse-cdn.com/v4/letter/d/ec9cab/32.png) [@demir6693](https://community.letsencrypt.org/u/demir6693)\
**Post date:** [March 15, 2021, 4:10pm UTC](https://community.letsencrypt.org/t/challenge-failed-only-for-domain-mail-opobir-com/147494/1 "2021-03-15T16:10:17Z")

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Hi. I am trying to install ssl cert for [mail.opobir.com](http://mail.opobir.com), but I have error message (look picture) only for [mail.opobir.com](http://mail.opobir.com), for [domain.com](http://domain.com) was installed successfully. Also [mail.domain.com](http://mail.domain.com) passed all dns checked tests.

My domain is: [opobir.com](http://opobir.com)

When I first time run the command "sudo certbot --apache", I am not configure correctly A record for "[mail.opobir.com](http://mail.opobir.com)", and I have error message (look picture for error message). After correctly configuration records for "[mail.opobir.com](http://mail.opobir.com)" I have still same error message.

 ![Screenshot from 2021-03-15 17-02-13](https://global.discourse-cdn.com/letsencrypt/original/3X/6/1/615d8f0351bc2dc011486836e83b861f5e6ab791.png)

My web server is ubuntu 20.04 (LAMP),  
provider is Contabo and I can login to a root shell,  
also I have installed webmin panel on server.  
certbot version: 0.40.0

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**Author:** ![JuergenAuer](https://sea3.discourse-cdn.com/letsencrypt/user_avatar/community.letsencrypt.org/juergenauer/32/26491_2.png) [@JuergenAuer](https://community.letsencrypt.org/u/JuergenAuer)\
**Post date:** [March 15, 2021, 4:14pm UTC](https://community.letsencrypt.org/t/challenge-failed-only-for-domain-mail-opobir-com/147494/2 "2021-03-15T16:14:10Z")

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Hi @demir6693

> [@demir6693](#):
>
> but I have error message

all answers are required:

--

Please fill out the fields below so we can help you better. Note: you must provide your domain name to get help. Domain names for issued certificates are all made public in Certificate Transparency logs (e.g. [crt.sh | example.com](https://crt.sh/?q=example.com)), so withholding your domain name here does not increase secrecy, but only makes it harder for us to provide help.

My domain is:

I ran this command:

It produced this output:

My web server is (include version):

The operating system my web server runs on is (include version):

My hosting provider, if applicable, is:

I can login to a root shell on my machine (yes or no, or I don't know):

I'm using a control panel to manage my site (no, or provide the name and version of the control panel):

The version of my client is (e.g. output of `certbot --version` or `certbot-auto --version` if you're using Certbot):

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**Author:** ![system](https://global.discourse-cdn.com/letsencrypt/original/3X/c/a/ca6c06ea1ea201324bba7048c6841ce60236468d.png) [@system](https://community.letsencrypt.org/u/system)\
**Post date:** [April 14, 2021, 4:14pm UTC](https://community.letsencrypt.org/t/challenge-failed-only-for-domain-mail-opobir-com/147494/3 "2021-04-14T16:14:56Z")

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