[horde] Timeout when sending to a lot of recipients

[Andre Luiz Paiz]

Hi, we just received a issue notification by an user that is trying to  
send via horde (5.2.20), a single message to 70 people.

Monitoring the server, the client connects to our mail server via  
submission port and loose connection on processing message 61. I can  
tel because I use a cluebringer quota service that logs every single  
entrance. Users have a quota of 120 messages per our and I'm setting  
the tracker to 0 for testing. So it is not a quota problem.
After that, client receive a server problem/time out message and not a  
single message is sent.

When trying to send fewer messages, everything works fine.

Server runs postfix and have the default values (1000 simultaneous messages).
Is there a client timeout for horde that I can tune?

I turned on horde debug log and there is nothing related.

Thanks.
  Atenciosamente
 
André Luiz Paiz
Administração de Redes
Instituto de Química – Unicamp
andre.paiz at iqm.unicamp.br
Telefone: (19)3521-0197