Mailinglist Archive: opensuse (818 mails)

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[opensuse] Postfix - Default message & mailbox size limits

Just a note for those running postix mail servers on the default mailbox and message size limits. Many times these settings are not referenced in the default file. Moreover, if you are using procmail or some other 3rd party local delivery agent, the errors encountered when the mailbox size limit is reached are not obvious. The salient parts are:

Postfix imposes both message and mailbox size limits by default. The message_size_limit controls the maximum size in bytes of a message, including envelope information. (default 10240000)

The mailbox_size_limit controls the maximum size of any local individual mailbox or maildir file. This limits the size of any file that is written to upon local delivery, including files written by external commands (i.e. procmail) that are executed by the local delivery agent. (default is 51200000, set to 0 for no limit)

If bounced message notifications are generated, check the size of the local mailbox under /var/spool/mail and use postconf to check these size limits:

supersff:~> postconf -d mailbox_size_limit
mailbox_size_limit = 51200000
supersff:~> postconf -d message_size_limit
message_size_limit = 10240000

David C. Rankin, J.D.,P.E.
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