Icewarp 500 Internal Server Error

[Marketta Filipovich]

Wehave had this setup for years until about 2 weeks ago. I was out of the country and my guys on ground said the server ran out of space, so they deleted some logs and migrated it to a separate hard disk.

I have checked everything known to man to no avail, the only thing I notice is telnet to port 25 on the server is inconsistent. Most times it gives an operation timeout error then once in a while it connects.

Running Icewarp on a server as an internal email / Calendar / tasks / Contacts server to 13 workstations. I have one account that has run into problems retreiving the calendar. This is a shared calendar to the other workstations and the problem of loading the calendar shows up on the other workstations also.

I am not sure if this issue is with emclient or a corrupt calendar. I need to preserve / repair the calendar for my client. Perhaps there is a way to repair this or is this an issue with emclient? The calendar.ics file is 1.5 megs in size.

This is a programmatic endpoint, an API for a computer to talk to. You should probably be using a specialized client to utilize the service, and not your web browser. See Documentation - Let's Encrypt for help.

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), so withholding your domain name here does not increase secrecy, but only makes it harder for us to provide help.

Hello Mike ,

the let's encrypt certificate are generated from icewarp server , there is no command , it is a graphical console integrated with icewarp solution for mail

for example we tried to install for : webmail.woodboard.dz and it is stucked there (csr) unfortunetly there is no output in real time ,

But, you have gotten certs for your woodboard domain from Let's Encrypt before. Your most recent was issued on Jun21. But, when connecting to woodboard I see a cert from Sectigo which is invalid for woodboard because it has the wrong domain name in the cert. Although, I only checked ports 443 and 465.

Even though the issue is about getting a Let's Encrypt certificate, I think we don't really have enough information here yet to see what the problem could be or how to solve it. I would suggest starting with IceWarp support, which I guess is located at

Even if they can just help you get more detailed logs about what IceWarp was trying to do and exactly what failed, we would have more to work with in trying to understand the problem. (Or if the error was just based on a temporary outage or something, they may be able to help you get the software to try requesting the certificate again.)

@mohamed95 I'm sorry I didn't look closely at your log file when you posted it. I appreciate your providing this information, but after reviewing it, I also still think we don't have enough information to understand the problem. Specifically, the log file does not include any error from Icewarp about Let's Encrypt being unable to issue a requested certificate.

The log at Issue with let's encrypt ICEWARP MAIL SERVER - #12 by mohamed95 shows the ACME directory and other ACME traffic between the ACME client and ACME server, so that IP address clearly isn't blocked.

If someone send a eMail from outside or inside to a distribution list on the Exchange server, the eMail is received by all members of that distribution group in Exchange AND in Icewarp. Which is fine and as expected.

I'm here to confirm your current trouble: Did the emails which were sent to the distribution group that includes one mail-contact member([email protected]) not show the SMTP sender email address on icewarp server?

If so, could you get the SMTP email address if you send emails from another domain email address to this distribution group? Could you see the SMTP send email address by view the From entry in the message header?

To make all incoming emails of Exchange Server copied to icewarp server, you could also create a transport rule(If the recipient is located inside the organization, Cc/Bcc the message to a specific email address from icewarp server).

This is true no matter where the sender ist. But when sending a eMail to a Exchange-Distribution group (like those Fail2Ban Messages) it shows up.My Exchange Account ([email protected]) is configured to forward eMail to a Exchange Mail-contact which points to [email protected]

HINT: i think the problem is because BOTH eMail-servers are configured to the SAME eMail-domaine mydom.com but have different hostnames, IPs and DNS but the same domain part (exchange.mydom.com and icewarp.mydom.com both for eMail mydom.com)I#, sure that's the base reason for that trouble as internal Spam & Abuse prevention rules try to block it.

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