Incoming mail stuck in queue

I was planning to transfer to another server, and I actually transferred all the accounts, but I backed down and continued on the same server
The problem here is that I cannot receive any emails

all Incoming mail stuck in queue

Note: This ip for other server 1.2.3.4

LOG: MAIN
cwd=/usr/local/cpanel/whostmgr/docroot 4 args: /usr/sbin/exim -v -M 1r95Cr-001Hkn-19
delivering 1r95Cr-001Hkn-19
Connecting to hostname.contaboserver.net [1.2.3.4]:25 ... TFO mode sendto, no data: EINPROGRESS
connected
SMTP(No route to host)<<
SMTP(close)>>
cmdlog: '(unset)'
LOG: MAIN
H=hostname.contaboserver.net [1.2.3.4]: hostname.contaboserver.net [1.2.3.4]: No route to host
LOG: MAIN
== marketing@metatem.ca R=manualmx T=remote_smtp defer (113): No route to host H=hostname.contaboserver.net [1.2.3.4]: hostname.contaboserver.net [1.2.3.4]