imapsync – NO [OVERQUOTA] Not enough disk quota



msg INBOX/4624 {75129} couldn't append  (Subject:[Email message]) to folder INBOX: Error sending '55 APPEND INBOX (\Seen) "25-Aug-2017 09:12:05 -0600" {75129}': 55 NO [OVERQUOTA] Not enough disk quota (0.001 + 0.000 secs).

To resolve the above problem, check the following

  1. Email mailbox allocated size
  2. cPanel account user Quota

The above problem was due to the fact that the cPanel User Quota was maxed out. Increasing the space allocated to the account resolved the problem.

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