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Webmail Https no longer work since 21.5

Service Informa…

Newbie
Posts: 13

Service Informatique - 06:20am, Dec 11 2021

Hello,
We have encountered a problem since updating to v21.5.0
Webmail and activesync using SSL no longer work with MDaemon's integrated server since the update.
SSL with imap and smtp works well on their side

The manual creation or renewal of the Let's Encrypt certificate works well, the certificate is present. All options have been checked

Webmail in Http mode only works perfectly, we only have the problem with the activation of Https on Webmail ...

We have applied v21.5.1d, despite the fact that the release note does not indicate a fix for this bug. It's the same, the problem is still present

Our environment:
Windows server 2016 with patch November 2021

Have you had any feedback on this?

Thank you for your help

(older msg: 2)

Arron Caruth - Dec 13, 2021 8:58 am (#3 Total: 3)

Guest User

Posts: 1

Are you getting an error in your browser when you attempt to connect to webmail using https? What is the error?

Are there any errors in the webmail or wdaemon logs? If there are, please post log snippets so we can see what is happening. the logs can be found in the MDaemon\Logs directory.

Can you post a screenshot of your webmail HTTPS configurations from the MDaemon UI? It is found under Setup / Web & IM Services / SSL & HTTPS.

Was the certificate created using LetsEncrypt's testing system or their live system?

What hostname are you using to connect to webmail? Is the hostname you are using listed on the certificate?

Is the correct certificate selected in the webmail configurations in MDaemon?

If you change webmail to use port 447 for HTTPS, are you then able to connect to webmail using https? The URL would be something like https://mail.yourdomain.com:444

The results from NMAP scan that you posted are showing port 443 open as an IMAP port, I'm assuming this is just a mistake from nmap, but just in case, can you confirm that you don't have something else in MDaemon configured to listen on port 443? You can check the ports under Setup / Server Settings / DNS & IPs / Ports.

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On Mon, 13 Dec 2021 07:21:51 -0500, "lists-md-support@mdaemon.com (Service Informatique)" <lists-md-support@mdaemon.com> wrote:
Thank you for your reply

As indicated above, the Let's Encrypt certificate works well

Webmail is configured in HTTPS only, it uses the same certificate of course.
When we go to Http, it works very well, Mdaemon's internal server works.
HTTPS port configured to 443

Remote administration on port 1000 works perfectly in HTTPS

SMTPS and IMAPS over SSL works perfectly.

Port 443 is open, see the NMap scan below:
Starting Nmap 7.91 (https://nmap.org) at 2021-12-13 12:12 Paris, Madrid Nmap scan report for webmail.xxxxx.fr (192.168.10.21) Host is up (0.00s latency). PORT STATE SERVICE 25 / tcp open smtp 135 / tcp open msrpc 143 / tcp open imap 443 / tcp open https 465 / tcp open smtps 587 / tcp open submission 993 / tcp open imaps 10000 / tcp open snet-sensor-mgmt

No firewall, no ban

It is as if the internal Mdaemon server was not linked to port 443 or the certificate for webmail was not linked ...

View/reply at Webmail Https no longer work since 21.5
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support please use the form here:
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