FYI,
After performing a number of upgrades on my FreeBSD ports based install
on an older release of FreeBSD 9.1-STABLE, I started getting corrupt
messages. Since it was seemingly random on message with attachments, and
I had upgraded postfix, mailscanner, dbmail, and mysql all the the same
time, it took a while before I could capture a queued message.
I finally was able to determine that postfix and mailscanner were not to
blame, but rather somewhere in dbmail/mysql.
After taking a look in lmtp logs I found:
Mar 21 01:28:57 mail.consult-sc dbmail-lmtpd[74282]: [0x804c21810]
Error:[message] blob_insert(+203): SQLException: The size of BLOB/TEXT
data inserted in one transaction is greater than 10% of redo log size.
Increase the redo log size using innodb_log_file_size.
Here is a link to explain what changed in MySQL:
http://dba.stackexchange.com/questions/75328/row-size-error-with-mysql
This message is to make sure that nobody else starts to run into this issue.
My change to my.cnf:
###innodb_log_file_size=5242880 # Too Small!!
innodb_log_file_size=1048576000 # Close to 100MB accepted now which is
large enough for most normal email setups
-Jon
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