Postfix not receiving soobshenia, in what could be the problem?

Mail is sent to all third party boxes can't receive messages from outside and local. (imagine, too, never comes)
OS Ubuntu LTS 14.04.5
ISPmanager Lite 5.90.3

2 12:03:36 d-h dovecot: imap-login: Login: user=<admin@.ru>, method=PLAIN, rip=54.242.172.178, lip=****, mpid=5594, TLS, session=<1R6XgDlkjgA28qyy>
Feb 2 12:03:39 d-h dovecot: imap(admin@.ru): Connection closed in=1543 out=3618
Feb 2 12:04:04 d-h dovecot: imap-login: Login: user=<admin@.ru>, method=CRAM-MD5, rip=109.252.135.232, lip=****, mpid=5654, TLS, session=<3XNIgTlk/QBt/Ifo>
Feb 2 12:04:04 d-h dovecot: imap(admin@.ru): Disconnected: Logged out in=36 out=444
Feb 2 12:04:25 d-h postfix/qmgr[26153]: 14F794A034C1: from=<admin@.ru>, size=664, nrcpt=1 (queue active)
Feb 2 12:04:25 d-h dovecot: lda(admin@.ru): Fatal: setgid(513(dp) from userdb lookup) failed with euid=109(dovecot), gid=1001(mgrsecure), egid=1001(mgrsecure): Operation not permitted (This binary should probably be called with process group set to 513(dp) instead of 1001(mgrsecure))
Feb 2 12:04:25 d-h dovecot: lda(admin@.ru): Fatal: setgid(513(dp) from userdb lookup) failed with euid=109(dovecot), gid=1001(mgrsecure), egid=1001(mgrsecure): Operation not permitted (This binary should probably be called with process group set to 513(dp) instead of 1001(mgrsecure))
Feb 2 12:04:25 d-hc dovecot: lda(admin@.ru): Fatal: setgid(513(dps) from userdb lookup) failed with euid=109(dovecot), gid=1001(mgrsecure), egid=1001(mgrsecure): Operation not permitted (This binary should probably be called with process group set to 513(dps) instead of 1001(mgrsecure))</admin@.ru></admin@.ru></admin@.ru>


Thank you!
June 8th 19 at 16:44
3 answers
June 8th 19 at 16:46
show logs podfics
June 8th 19 at 16:48
if properly understood here.
2 12:49:00 d-hc postfix/smtpd[9680]: warning: ppp109-252-135-232.pppoe.spdop.ru[109.252.135.232]: SASL CRAM-MD5 authentication failed: Connection lost to authentication server
Feb 2 12:49:00 d-hc postfix/smtpd[9680]: 661904A043FF: client=ppp109-252-135-232.pppoe.spdop.ru[109.252.135.232], sasl_method=CRAM-MD5, sasl_username=admin@.ru
Feb 2 12:49:00 d-hc postfix/cleanup[9607]: 661904A043FF: message-id=<ad21ceb7-c151-4552-8761-155ec4647156@.ru>
Feb 2 12:49:00 d-hc postfix/qmgr[26153]: 661904A043FF: from=<admin@.ru>, size=669, nrcpt=1 (queue active)
Feb 2 12:49:00 d-hc postfix/pipe[9613]: 661904A043FF: to=<admin@.ru>, relay=dovecot, delay=0.23, delays=0.17/0/0/0.05, dsn=4.3.0, status=deferred (temporary failure)</admin@.ru></admin@.ru></ad21ceb7-c151-4552-8761-155ec4647156@.ru>
June 8th 19 at 16:50
The obvious question: and the place free or a disk quota has not been exhausted the user and/or the server in General (to the partition on which /var/mail)?
On the disc there. The quota for mixing ISP is still far from completion. - ernestin commented on June 8th 19 at 16:53

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