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1
Problems on other RedHat linux servers / Re: I can send and receive messages via the web, but it doesn't work through the...
« on: January 29, 2025, 07:56:50 PM »1. Did you check if the secure mail ports are listed by mail services (postfix, dovecot) ?
2. Check the mail logs on your server to investigate the problem:
/var/log/maillog
/var/log/dovecot.log
Hi,
Thank you very much...
1.As I noted in a previous answer, after executing the telnet command for the ports:
telnet your.domain.com 25
telnet your.domain.com 465
telnet your.domain.com 587
I got the following results: all ports connect with telnet, but only on 25 and 587 does Postfix return ESMTP, on 465 it returns nothing..., but 465 is open...
/var/log/maillog- the file is very large and I can't open or download it... - 5.5 GB;
/var/log/dovecot.log - in this POP3 file the error is often noticed, please see the following picture:
https://prnt.sc/uJ82kvYrptH9
Thanks in advance!
BR
Venty
2
Problems on other RedHat linux servers / Re: I can send and receive messages via the web, but it doesn't work through the...
« on: January 29, 2025, 05:25:50 PM »I'm sorry, but have you considered hiring a sysadmin to help you set up your server?
NO, AND I DON'T THINK…
here I saw that there are many topics about a similar problem...
3
Problems on other RedHat linux servers / Re: I can send and receive messages via the web, but it doesn't work through the...
« on: January 29, 2025, 11:19:20 AM »
SSL mail???
4
Problems on other RedHat linux servers / DNS zone with DNS records - where?
« on: January 28, 2025, 09:39:17 AM »
Hi,
When I purchased the domains (from my provider) I set DNS records, the CWP also creates a DNS zone with DNS records, in the user panel there is also a similar function DNS zone with DNS records - do records need to be created everywhere? If so, what do I get?
BR
Venty
When I purchased the domains (from my provider) I set DNS records, the CWP also creates a DNS zone with DNS records, in the user panel there is also a similar function DNS zone with DNS records - do records need to be created everywhere? If so, what do I get?
BR
Venty
5
Problems on other RedHat linux servers / Re: I can send and receive messages via the web, but it doesn't work through the...
« on: January 28, 2025, 09:36:34 AM »
Hi,
I continue with the tests, server with AL9:
1. After a user is created, a domain is automatically attached to it, I create a SSL certificate, including a subdomain mail, but no mail account works with SSL ports 465 and 995???
2. I attached a second domain to the same user, created an SSL for it, and then created an email account, but no mail account works with SSL ports 465 and 995???
3. Are SSL certificates and email accounts created in the user panel or..., I tested many options?
BR
Venty
I continue with the tests, server with AL9:
1. After a user is created, a domain is automatically attached to it, I create a SSL certificate, including a subdomain mail, but no mail account works with SSL ports 465 and 995???
2. I attached a second domain to the same user, created an SSL for it, and then created an email account, but no mail account works with SSL ports 465 and 995???
3. Are SSL certificates and email accounts created in the user panel or..., I tested many options?
BR
Venty
6
Installation / ...server under AL9?
« on: January 27, 2025, 10:55:12 AM »
Hi,
Can anyone please tell me how to set up a server under AL9?
BR
Venty
Can anyone please tell me how to set up a server under AL9?
BR
Venty
7
Problems on other RedHat linux servers / Re: daily "Anacron" messages?
« on: January 24, 2025, 09:38:53 AM »
Hi,
I'm still testing AL9, but I'm worried about error messages when backing up databases...
BR
Venty
I'm still testing AL9, but I'm worried about error messages when backing up databases...
BR
Venty
8
Problems on other RedHat linux servers / Re: I can send and receive messages via the web, but it doesn't work through the...
« on: January 24, 2025, 08:52:20 AM »Various caching schemes are in play, but shouldn't affect anything in this case.
Have you tried testing your server with telnet and see if you can get through the firewall and services are listening (postfix)?Code: [Select]telnet your.domain.com 25
telnet your.domain.com 465
telnet your.domain.com 587
Hi,
Thanks, all ports connect with telnet, but only on 25 and 587 does Postfix return ESMTP, on 465 it returns nothing...
Ncat I could not access it....
nc -vz google.com 80 - it returned me -bash: nc: command not found
BR
Venty
9
Problems on other RedHat linux servers / Re: I can send and receive messages via the web, but it doesn't work through the...
« on: January 23, 2025, 07:06:52 PM »Does your SSL have the mail sub-domain added?
Most mail clients like Thunderbird will automatically contact the email server for the correct settings.
The error is it can't connect to the SMTP server via SSL.
Make sure ports 486 and 587 are open, as these are the SMTP SSL ports. Port 25 is Non-SSL.
Hi,
1. Yes, there is a mail subdomain added...
2. I mention port 25 because when I didn't select SSL for the mail client, I send through it without problems. and accordingly I receive through port 110...
3. For SSL, my port is 465 and it is open...
Does the CWP have a cache?
BR
Venty
10
Problems on other RedHat linux servers / Re: I can send and receive messages via the web, but it doesn't work through the...
« on: January 23, 2025, 12:48:54 PM »
Hi,
I fixed the rDNS/PTR record and it's OK...
I have completed all the settings, including SSL, and created an email account, I can send and receive messages via the web (Roundcube Webmail) and port 25 and 110, but it doesn't work through the email client when I use the corresponding SSL ports, where am I wrong?
When setting up email to work with SSL, I get this error:
ERROR:SMTP Connect host=mail.xxxxxxxx.com error=Error connecting with SSL.
error:00000001:lib(0):func(0):reason(1)
Thanks in advance!
BR
Venty
I fixed the rDNS/PTR record and it's OK...
I have completed all the settings, including SSL, and created an email account, I can send and receive messages via the web (Roundcube Webmail) and port 25 and 110, but it doesn't work through the email client when I use the corresponding SSL ports, where am I wrong?
When setting up email to work with SSL, I get this error:
ERROR:SMTP Connect host=mail.xxxxxxxx.com error=Error connecting with SSL.
error:00000001:lib(0):func(0):reason(1)
Thanks in advance!
BR
Venty
11
Problems on other RedHat linux servers / Re: I can send and receive messages via the web, but it doesn't work through the...
« on: January 22, 2025, 02:04:18 PM »
Hi,
I use Alma linux 9.5 and CWP…
I have completed all the settings, including SSL, and created an email account, I can send and receive messages via the web (Roundcube Webmail) and port 25 and 110, but it doesn't work through the email client when I use the corresponding SSL ports, where am I wrong?
When setting up email to work with SSL, I get this error:
https://prnt.sc/fNf8nEMXT1N0
Other:
I deleted a user and creating a new user several times due to some problems and now we get to:
rDNS/PTR = FAILED, check with your hosting provider! FAILED
I have talked to my provider, this rDNS worked before when I used Centos 7, now at the beginning with AL 9, but when deleting and creating a new user it was lost...at that moment I noticed it...
Thanks in advance!
BR
Venty
I use Alma linux 9.5 and CWP…
I have completed all the settings, including SSL, and created an email account, I can send and receive messages via the web (Roundcube Webmail) and port 25 and 110, but it doesn't work through the email client when I use the corresponding SSL ports, where am I wrong?
When setting up email to work with SSL, I get this error:
https://prnt.sc/fNf8nEMXT1N0
Other:
I deleted a user and creating a new user several times due to some problems and now we get to:
rDNS/PTR = FAILED, check with your hosting provider! FAILED
I have talked to my provider, this rDNS worked before when I used Centos 7, now at the beginning with AL 9, but when deleting and creating a new user it was lost...at that moment I noticed it...
Thanks in advance!
BR
Venty
12
Information / Re: SSL not creating certs on new domain addition
« on: January 22, 2025, 07:14:03 AM »It was a LINODE PROBLEM. I changed my dns to spaceship and immediately got a new certificate.
Hi,
Please explain: LINODE PROBLEM? and dns to spaceship?
Thanks in advance!
BR
Venty
14
Problems on other RedHat linux servers / Re: rDNS/PTR = FAILED...
« on: January 19, 2025, 11:20:24 AM »Review this post to get details how to check and diagnose RDNS/PTR related problems:
http://forum.centos-webpanel.com/dns/help-with-rdns/msg49130/#msg49130
Hi,
I did what you recommended in the link provided, it gives me the correct answers...
BR
Venty
15
Problems on other RedHat linux servers / Re: rDNS/PTR = FAILED...
« on: January 19, 2025, 08:57:36 AM »You need forward and reverse DNS, both agreeing in order to be considered a valid sending source for other servers to accept mail. It should not be tied to a particular user account. What is the server's FQDN?
Hi,
PTR is available, but the panel shows that rDNS/PTR = FAILED...
BR
Venty