it was a simple solution anyway.

I wanted to tweet on the subject but found out that it was locked and solved. Well i had to make a new thread

please share the link for the screenshots again.

i did not receive them

Please do not take this negatively.
This proves that you are not reading or understanding the responses people write here.
He posted it here: https://forum.cloudron.io/post/104300 and you were not even able to scroll up and read but ask for the link.

Is there maybe a language barrier? I had other topics where we had to switch to french to resolve the issue efficiently.
If that is the case, please let us know.

I will not answer you or respond to you anymore

i did not receive them

@scooke thats not a nice thing to say... wasting someones time? I asked to give me directions to check this.

@d19dotca thanks for all your help but i actually want to check the logs part if i can get help with it

It would help if you would actually read and acted on all helpful responses myself and others have provided.

We have already given you descriptions and screenshots of exactly where to find mail logs, but you still haven't shared them, and worse you come back asking for the exact instructions again as if we haven't already provided them.

Sorry, but I agree with @scooke: you are completely wasting everyone's time. Including your own.

i will however re-install this server

However, I have replaced and changed IP's different times on my request to be sure that the problem is not coming from my side. That is called troubleshooting.

i will however re-install this server and see what will happen after this. I will keep you posted then we can work on the new IP.

You were requested several times, by several different people to provide the mail service logs which you did not provide.

Not only requested, but descriptions and screenshots of exactly where to find those logs provided too.

@scooke thats not a nice thing to say... wasting someones time? I asked to give me directions to check this.

No. What you are doing is not very nice.
You have been given directions, yet you reinstall everything, so anyone who has spent anytime thinking about the problem as you stated has now had their time wasted because you didn't follow the steps they suggest. Now the situation has likely changed somewhat, so everyone has to start over with your poor description of the problem (other than it sure looks like you are a spammer... 5436 emails??? and 10k+, and that is the reason for your email troubles) As @BrutalBirdie points out, you have not yet provided the mail service logs, despite being asked for it, and having been given instructions about how to get them, as well as a screenshot showing you where to click to get them!!!!!!!!!!!!!!!!! Do not ask for that again... just read this entire thread and you will find them.

dig A my.miritz.bio +short
213.232.235.195
dig AAAA my.miritz.bio +short

And your PTR is:

dig -x 213.232.235.195 +short
miritz.bio.

But I can't verify the AAAA PTR Record.

Using the bare domain as the mail server domain can lead to many issues like DNS propagation times.
But your choice.

At least the IMCP Ping is working:

ping my.miritz.bio
PING my.miritz.bio (213.232.235.195) 56(84) bytes of data.
64 bytes from miritz.bio (213.232.235.195): icmp_seq=1 ttl=119 time=78.7 ms

Also I just run nmap -T Aggressive -A 213.232.235.195 also the following might be false but:

nmap -T Aggressive -A 213.232.235.195
Starting Nmap 7.95 ( https://nmap.org ) at 2025-03-26 09:20 W. Europe Standard Time
Nmap scan report for miritz.bio (213.232.235.195)
Host is up (0.063s latency).
Not shown: 993 closed tcp ports (reset)
PORT     STATE    SERVICE       VERSION
135/tcp  filtered msrpc
139/tcp  filtered netbios-ssn
445/tcp  filtered microsoft-ds
3389/tcp open     ms-wbt-server Microsoft Terminal Services
|_ssl-date: 2025-03-26T08:21:55+00:00; 0s from scanner time.
| ssl-cert: Subject: commonName=opal-labs
| Not valid before: 2025-03-24T15:14:12
|_Not valid after:  2025-09-23T15:14:12
| rdp-ntlm-info:
|   Target_Name: OPAL-LABS
|   NetBIOS_Domain_Name: OPAL-LABS
|   NetBIOS_Computer_Name: OPAL-LABS
|   DNS_Domain_Name: opal-labs
|   DNS_Computer_Name: opal-labs
|   Product_Version: 10.0.17763
|_  System_Time: 2025-03-26T08:21:53+00:00
5357/tcp open     http          Microsoft HTTPAPI httpd 2.0 (SSDP/UPnP)
|_http-title: Service Unavailable
|_http-server-header: Microsoft-HTTPAPI/2.0
5985/tcp open     http          Microsoft HTTPAPI httpd 2.0 (SSDP/UPnP)
|_http-title: Not Found
|_http-server-header: Microsoft-HTTPAPI/2.0
5986/tcp open     ssl/http      Microsoft HTTPAPI httpd 2.0 (SSDP/UPnP)
|_http-title: Not Found
|_http-server-header: Microsoft-HTTPAPI/2.0
| tls-alpn:
|_  http/1.1
| ssl-cert: Subject: commonName=Cloudbase-Init WinRM
| Not valid before: 2025-03-24T15:14:30
|_Not valid after:  2035-03-23T15:14:30
|_ssl-date: 2025-03-26T08:21:55+00:00; 0s from scanner time.
Device type: general purpose
Running (JUST GUESSING): Microsoft Windows 10|2019|2016 (89%)
OS CPE: cpe:/o:microsoft:windows_10 cpe:/o:microsoft:windows_server_2019 cpe:/o:microsoft:windows_server_2016
Aggressive OS guesses: Microsoft Windows 10 1607 (89%), Windows Server 2019 (88%), Microsoft Windows 10 1903 - 21H1 (85%), Microsoft Windows Server 2016 (85%)
No exact OS matches for host (test conditions non-ideal).
Network Distance: 10 hops
Service Info: OS: Windows; CPE: cpe:/o:microsoft:windows

Windows? Maybe a Windows Virtualized Setup?

Your posted putty screenshots connecting to root@host are you really using a VPS and not a home server setup?

You were requested several times, by several different people to provide the mail service logs which you did not provide.

After some time they stop working. The first was the spamHouse now i actually do not know if it is the domain or what but am now sure it is not the service VPS provider.

I am trying to eliminate these issues one after the other for me to find the cause off the problem.

I really need help

@d19dotca thanks for all your help but i actually want to check the logs part if i can get help with it

I tried reinstalling the whole thing and it will start working after some time this error will come up again

i have tried that several times

Something is off here.

i changed servers just to be sure and i still have thesame error messsage assame as last VPS server

i tried connecting to telnet not working

this messed my email campaign up.. i also put it some triggers to make sure it does not come into spam and send emails at the rate off 200 per 30 mins.

see attached

the problem is from cloudron and you need to fix this. This is no server issue. Since you made your upgrade it has messed our servers up.Check this internally because this same issue cannot happen with a different VPS provider

I cannot run telnet on it

i changed service providers and same thing and same issue

But this clearly isn't anything to do with Cloudron imho. You need to use an email relay if you're going to be sending out 1000s of emails, otherwise you'll get blocked by your host and/ or added to blacklists. There isn't anything Cloudron can do about that, it's just the way the email world works.