I am stuck on this issue for days, I am able to connect on my IMAP server using Apple mail client but thunderbird shows me this error: "improper command pipelining after EHLO"

I have tried all the ports in manual config but it just is not working while Apple Mail is able to connect perfectly,

here are my configuration details of "postconf -n" , "doveconf -n" and "master.cf"

Thanks in advance.