no external emails arrive and it does not show error

Hi, its is my first post...

he truth I'm desperate since morning my server went crazy, there were spam problems and my services are all down,
the problem is with the file eximstats db.sqlite3 was blocked, I could unblock it but the mail log does not work and and when sending an email from any account of my domain it does not arrive and it does not send error nor the log works, it is as if will send correctly but does not reach the recipient, the funny thing is that if you can receive emails but not send.

the only problem I had in the morning was that an account was sent an exaggerated amount of span that was what the cron I notice about the eximstats spam check of an account and from there I started all the problem, I wait for your comments and an apology for my bad English, greetings

 

[root@elc log]# vim exim_paniclog

Code:

[root@elc log]# vim exim_paniclog
2018-03-22 10:48:19 1ez3Mv-0001VM-Cs Failed to get write lock for /var/spool/exim/db/wait-dkim_remote_smtp.lockfile: timed out
2018-03-22 10:48:19 1ez3Mz-0001YM-4I Failed to get write lock for /var/spool/exim/db/wait-dkim_remote_smtp.lockfile: timed out
2018-03-22 10:48:20 1ez3My-0001Xt-Dq Failed to get write lock for /var/spool/exim/db/wait-dkim_remote_smtp.lockfile: timed out
2018-03-22 10:48:24 1ez3N3-0001bi-Pf Failed to get write lock for /var/spool/exim/db/wait-dkim_remote_smtp.lockfile: timed out
2018-03-22 10:48:25 1ez3N4-0001cz-W4 Failed to get write lock for /var/spool/exim/db/wait-dkim_remote_smtp.lockfile: timed out
2018-03-22 10:48:28 1ez3L0-0000kP-Fy Failed to get write lock for /var/spool/exim/db/wait-dkim_remote_smtp.lockfile: timed out
2018-03-22 10:48:32 1ez3NC-0001iL-He Failed to get write lock for /var/spool/exim/db/wait-dkim_remote_smtp.lockfile: timed out
2018-03-22 10:48:33 1ez3N9-0001gE-6J Failed to get write lock for /var/spool/exim/db/wait-dkim_remote_smtp.lockfile: timed out
2018-03-22 10:48:34 1ez3NE-0001jg-Fd Failed to get write lock for /var/spool/exim/db/wait-dkim_remote_smtp.lockfile: timed out
2018-03-22 10:56:01 1ez3Nz-0002CQ-OT Failed to get write lock for /var/spool/exim/db/wait-dkim_remote_smtp.lockfile: timed out
2018-03-22 10:56:03 1ez3UU-0005Qg-6e Failed to get write lock for /var/spool/exim/db/wait-dkim_remote_smtp.lockfile: timed out
2018-03-22 10:56:03 1ez3UU-0005Qg-6e Failed to get write lock for /var/spool/exim/db/wait-dkim_remote_smtp.lockfile: timed out
2018-03-22 10:56:17 1ez3Sb-0004TS-Re Failed to get write lock for /var/spool/exim/db/wait-dkim_remote_smtp.lockfile: timed out
2018-03-22 11:04:08 1ez3bl-0000SW-GF Failed to get write lock for /var/spool/exim/db/wait-dkim_remote_smtp.lockfile: timed out
2018-03-22 11:13:33 1ez3kA-0004bd-L1 spam acl condition: cannot parse spamd [127.0.0.1]:783 output
2018-03-22 11:23:44 1ez3t8-0000ID-Fn Failed to get write lock for /var/spool/exim/db/wait-dkim_remote_smtp.lockfile: timed out
2018-03-22 12:33:42 1ez4qO-0000pt-Vl Failed to get write lock for /var/spool/exim/db/wait-dkim_remote_smtp.lockfile: timed out
2018-03-22 12:33:46 1ez4wp-0003nM-Aw Failed to get write lock for /var/spool/exim/db/wait-dkim_remote_smtp.lockfile: timed out
2018-03-22 12:33:46 1ez4yv-0004iU-TN Failed to get write lock for /var/spool/exim/db/wait-dkim_remote_smtp.lockfile: timed out
2018-03-22 12:33:50 1ez4yy-0004jM-C6 Failed to get write lock for /var/spool/exim/db/wait-dkim_remote_smtp.lockfile: timed out
2018-03-22 12:33:52 1ez515-0005iM-7S Failed to get write lock for /var/spool/exim/db/wait-dkim_remote_smtp.lockfile: timed out
2018-03-22 12:33:52 1ez4qW-0000ts-D8 Failed to get write lock for /var/spool/exim/db/wait-dkim_remote_smtp.lockfile: timed out
2018-03-22 12:33:54 1ez518-0005kJ-Vq Failed to get write lock for /var/spool/exim/db/wait-dkim_remote_smtp.lockfile: timed out
2018-03-22 12:33:56 1ez4wy-0003rz-EM Failed to get write lock for /var/spool/exim/db/wait-dkim_remote_smtp.lockfile: timed out

"exim_paniclog" 160L, 20408C

the server already shows the services above, apparently the only problem that I present is that I can not send emails to other domains, when sending an email, the Outlook or web mail or some other mail manager shows that it was sent correctly , but obviously they do not reach the client and no error or warning is returned