Postfix is unable to relay mails.
Issue
- Postfix is unable to relay mails.
- Email deliveries are failing due to following errors in /var/log/maillog
Jun 6 10:44:43 localhost postfix/smtpd[6938]: NOQUEUE: reject: MAIL from example.net[10.x.x.x]: 452 4.3.1 Insufficient system storage; proto=ESMTP helo=<example.net>
Jun 6 10:44:43 localhost postfix/smtpd[6938]: warning: not enough free space in mail queue: 0 bytes < 1.5*message size limit
Jun 6 10:44:44 localhost postfix/cleanup[6858]: warning: 3107FC3669: write queue file: No space left on device
Environment
- Red Hat Enterprise Linux 6
- postfix-2.3.3-6.el5
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