Currently I have a droplet installed vestacp with exim mail server is apparently all right, dns, rdns, firewall, ssl. I receive emails normally, but I can not send follow the exim logs.

2017-04-11 04:33:29 1cxnUe-0001DA-Mm <= admin@webnuvem.com H=(XXXXXXXX.namprd20.prod.outlook.com) [132.245.72.157] P=esmtpsa X=TLSv1.2:ECDHE-RSA-AES128-SHA256:128 CV=no A=dovecot_login:admin@webnuvem.com S=1636 id=XXXXXXXXXXXXXXXXXXX.namprd20.prod.outlook.com
2017-04-11 04:34:49 1cxnFh-0004vE-QE H=gmail-smtp-in.l.google.com [74.125.22.26] Connection timed out
2017-04-11 04:34:49 1cxnFh-0004vE-QE == XXXXX@gmail.com R=dnslookup T=remote_smtp defer (110): Connection timed out
2017-04-11 04:34:49 1cxm2D-0001Mk-Pf Message is frozen
2017-04-11 04:34:49 End queue run: pid=855
2017-04-11 04:35:36 1cxnUe-0001DA-Mm H=gmail-smtp-in.l.google.com [74.125.22.26] Connection timed out
2017-04-11 04:35:36 1cxnUe-0001DA-Mm == XXXX@gmail.com R=dnslookup T=remote_smtp defer (110): Connection timed out