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i keep getting these emails to my postmast account every minute and can not figure out how to stop them.

Cron <sogo@mail> /usr/sbin/sogo-tool expire-sessions 30 2>/dev/null; /usr/sbin/sogo-ealarms-notify

attached below is the log snippet for one of the messages

/var/log/mail.log

May 30 20:31:01 mail postfix/pickup[7284]: A3453A143D: uid=999 from=<sogo>
May 30 20:31:01 mail postfix/cleanup[7182]: A3453A143D: message-id=<20170530203101.A3453A143D@mail.aperturephoto.ca>
May 30 20:31:01 mail postfix/qmgr[1576]: A3453A143D: from=<sogo@mail.aperturephoto.ca>, size=963, nrcpt=1 (queue active)
May 30 20:31:01 mail postfix/10025/smtpd[5886]: connect from mail.aperturephoto.ca[127.0.0.1]
May 30 20:31:01 mail postfix/10025/smtpd[5886]: C4B9DA143F: client=mail.aperturephoto.ca[127.0.0.1]
May 30 20:31:01 mail postfix/cleanup[7183]: C4B9DA143F: message-id=<20170530203101.A3453A143D@mail.aperturephoto.ca>
May 30 20:31:01 mail postfix/10025/smtpd[5886]: disconnect from mail.aperturephoto.ca[127.0.0.1] ehlo=1 mail=1 rcpt=1 data=1 quit=1 commands=5
May 30 20:31:01 mail postfix/qmgr[1576]: C4B9DA143F: from=<sogo@mail.aperturephoto.ca>, size=1479, nrcpt=1 (queue active)
May 30 20:31:01 mail postfix/cleanup[7182]: C7876A1440: message-id=<20170530203101.A3453A143D@mail.aperturephoto.ca>
May 30 20:31:01 mail postfix/qmgr[1576]: C7876A1440: from=<sogo@mail.aperturephoto.ca>, size=1622, nrcpt=1 (queue active)
May 30 20:31:01 mail postfix/local[5774]: C4B9DA143F: to=<sogo@mail.aperturephoto.ca>, relay=local, delay=0.02, delays=0/0/0/0.01, dsn=2.0.0, status=sent (forwarded as C7876A1440)
May 30 20:31:01 mail postfix/qmgr[1576]: C4B9DA143F: removed
May 30 20:31:01 mail amavis[7129]: (07129-15) Passed CLEAN {RelayedInbound}, [127.0.0.1] <sogo@mail.aperturephoto.ca> -> <sogo@mail.aperturephoto.ca>, Message-ID: <20170530203101.A3453A143D@mail.aperturephoto.ca>, mail_id: ZyCxsATRMZ-M, Hits: 0, size: 962, queued_as: C4$
May 30 20:31:01 mail postfix/smtp-amavis/smtp[7125]: A3453A143D: to=<sogo@mail.aperturephoto.ca>, relay=127.0.0.1[127.0.0.1]:10024, delay=0.18, delays=0.02/0/0/0.16, dsn=2.0.0, status=sent (250 2.0.0 from MTA(smtp:[127.0.0.1]:10025): 250 2.0.0 Ok: queued as C4B9DA143F)
May 30 20:31:01 mail postfix/qmgr[1576]: A3453A143D: removed
May 30 20:31:01 mail postfix/pipe[5776]: C7876A1440: to=<postmaster@aperturephoto.ca>, relay=dovecot, delay=0.04, delays=0/0/0/0.03, dsn=2.0.0, status=sent (delivered via dovecot service)
May 30 20:31:01 mail postfix/qmgr[1576]: C7876A1440: removed