==== REQUIRED BASIC INFO OF YOUR IREDMAIL SERVER ====
- iRedMail version : 1.0
- Deployed with iRedMail Easy or the downloadable installer? Yes
- Linux/BSD distribution name and version: Centos 7
- Store mail accounts in which backend :MySQL
- Web server (Apache or Nginx):nginx

after updating sogo receving following error

Jan 18 12:58:03 mail postfix/submission/smtpd[3946]: connect from mail.xxx.xxx[127.0.0.1]
Jan 18 12:58:03 mail postfix/submission/smtpd[3946]: Anonymous TLS connection established from mail.xxx.xxx[127.0.0.1]: TLSv1 with cipher ECDHE-RSA-AES256-SHA (256/256 bits)
Jan 18 12:58:03 mail postfix/submission/smtpd[3946]: 4808fW4dd8z3HhC: client=mail.xxx.xxx[127.0.0.1], sasl_method=LOGIN, sasl_username=postmaster@xxx.xxx
Jan 18 12:58:03 mail postfix/cleanup[4033]: 4808fW4dd8z3HhC: message-id=<5d389842444fd0c12fdd26d7ffa69070@xxx.xxx>
Jan 18 12:58:03 mail postfix/qmgr[3918]: 4808fW4dd8z3HhC: from=<postmaster@xxx.xxx>, size=562, nrcpt=1 (queue active)
Jan 18 12:58:03 mail roundcube: <qt2mtccc> User postmaster@xxx.xxx[103.xx.xx.13]; Message <5d389842444fd0c12fdd26d7ffa69070@navkarnet.net> for xxx@gmail.com; 250: 2.0.0 Ok: queued as 4808fW4dd8z3HhC
Jan 18 12:58:03 mail postfix/submission/smtpd[3946]: disconnect from mail.xxx.xxx[127.0.0.1]
Jan 18 12:58:03 mail postfix/amavis/smtp[4038]: connect to 127.0.0.1[127.0.0.1]:10026: Connection refused
Jan 18 12:58:03 mail postfix/amavis/smtp[4038]: 4808fW4dd8z3HhC: to=<xxx@gmail.com>, relay=none, delay=0.1, delays=0.09/0.01/0/0, dsn=4.4.1, status=deferred (connect to 127.0.0.1[127.0.0.1]:10026: Connection refused)