Mail not sent

For the second times, with the same account, my reply is not sent and the message is in the folder “Outbox” of Local folders.
I clicked a few times on “send mails”, but nothing happens.

As I had to reply, I did so from the webmail. But this is not normal.
Do you know how to repair this problem?

The eMClient stack says :

Thread ID: 4076   
Thread ID: 4764   
Thread ID: 4772   
Thread ID: 5676 [waiting]  
Thread ID: 5952 [waiting]  
Thread ID: 5832 [waiting]  
Thread ID: 416 [waiting]  
Thread ID: 2496 [waiting]  
Thread ID: 1488 [waiting]  
Thread ID: 484 [waiting]  
Thread ID: 2488 [waiting]  
Thread ID: 2948 [waiting]  
Thread ID: 2492 [waiting]  
Thread ID: 3944 [waiting]  
Thread ID: 5324   
Thread ID: 2072   
Thread ID: 3988 [waiting] ```

The emstackdump will not help us in this case. Please send me your SMTP log - it will tell us more. Thank you.

Hello,

I resolved this problem. SMTP needed to be “fixed”.
I did not see the error, because with the last version of eMClient, the problem does not appear as in previous version.