I have been using Cpanel in a dedicated server for around 5 years. My license was always expiring and I could normally read my emails.
But in November my Cpanel license expired and I couldn't receive emails to any account. In all our email accounts Thunderbird was saying: "Please provide the correct username and password". So I renewed my Cpanel license and the problem was solved after closing and restarting Thunderbird 2-3 times.
In the meantime, when I received my emails, I saw tons of emails that were in the mail server (in the hours while Cpanel was not purchased) and those were showing the following errors:
[server.mysite.com] FAILED
: exim (IP here)
The service “exim” appears to be down.
The system failed to connect to this service’s TCP/IP port.
< 220-server.mysite.com ESMTP Exim 4.91 #1 Wed, 05 Dec 2018 00:28:21 +0000
<< 220-We do not authorize the use of this system to transport unsolicited,
<< 220 and/or bulk e-mail.
So your Community Managers/Devs in other forum told me:
"This was changed in cPanel 76.0.11, released on 2018-11-29"
Today's version that I have in Cpanel is 78.0 (build 13)
3 weeks ago I had to pay to renew my Cpanel license AGAIN, because all my colleagues could not send or receive emails!
Now my Cpanel license is ending and I got the first email with invoice today. What is going to happen? I am paying for nothing 3 months now. Your job as Cpanel is to provide a user interface over SSH and NOT TO BLOCK our mail server so that it's not used from Mozilla Thunderbird.
So far I am very nice to you. Normally, I should ask a refund for those 3 months. You didn't solve the issue and I am sure that when my cpanel license expires in a few days I wont have access to my emails again. Let me get this straight. If you don't solve this crap, your developers are going to either solve it with no active Cpanel license or I am going to post this in every forum that I know. I am not going to lose any more emails due to Cpanel. The only reason I pay for Cpanel license is when I want to open a new email account and that's it.
So did you solve your bug after 3 months or not?
But in November my Cpanel license expired and I couldn't receive emails to any account. In all our email accounts Thunderbird was saying: "Please provide the correct username and password". So I renewed my Cpanel license and the problem was solved after closing and restarting Thunderbird 2-3 times.
In the meantime, when I received my emails, I saw tons of emails that were in the mail server (in the hours while Cpanel was not purchased) and those were showing the following errors:
[server.mysite.com] FAILED

The service “exim” appears to be down.
The system failed to connect to this service’s TCP/IP port.
< 220-server.mysite.com ESMTP Exim 4.91 #1 Wed, 05 Dec 2018 00:28:21 +0000
<< 220-We do not authorize the use of this system to transport unsolicited,
<< 220 and/or bulk e-mail.
So your Community Managers/Devs in other forum told me:
"This was changed in cPanel 76.0.11, released on 2018-11-29"
Today's version that I have in Cpanel is 78.0 (build 13)
3 weeks ago I had to pay to renew my Cpanel license AGAIN, because all my colleagues could not send or receive emails!
Now my Cpanel license is ending and I got the first email with invoice today. What is going to happen? I am paying for nothing 3 months now. Your job as Cpanel is to provide a user interface over SSH and NOT TO BLOCK our mail server so that it's not used from Mozilla Thunderbird.
So far I am very nice to you. Normally, I should ask a refund for those 3 months. You didn't solve the issue and I am sure that when my cpanel license expires in a few days I wont have access to my emails again. Let me get this straight. If you don't solve this crap, your developers are going to either solve it with no active Cpanel license or I am going to post this in every forum that I know. I am not going to lose any more emails due to Cpanel. The only reason I pay for Cpanel license is when I want to open a new email account and that's it.
So did you solve your bug after 3 months or not?