[Dovecot] Director lmtp timeout errors

[Angel L. Mateo]

Hello,

     I have configured two dovecot servers with director acting as 
lmtp/imap/pop proxy server with 8 dovecot backend servers.

     In our test environment we had no problem, but when we migrated to 
production environment, our mail list server (it delivers mail through 
lmtp) is having a lot of errors like this:

451 4.4.0 Remote server not answering (DATA output timeout) (in reply to 
end of DATA command))

     I have found this same issue in some posts to this list, but I 
can't find any solution

     Any idea?

-- 
Angel L. Mateo Martínez
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