[Building Sakai] James configuration

[David Horwitz]

Hi Michael,

I'm not sure the exact cause of the james issue but with this
configuration we avoid another problem that can occur with outbound
email. This happens in cases where Sakai generates a large volume of
outbound email, if you rely on javax.mail to deliver it to a third party
server you may loose mail if it refuses connection. This way the mail
will always be queued locally and delivered in the next queue run ...

D

Michael Wenk wrote:
> David Horwitz wrote:
>> Hi
>>
>> +1 you should set up you local MTA to accept slightly more
>> connections than you have tomcat threads. Also you probably want to
>> still keep low the threshold that the MTA will accept mail but not
>> send it on to you institutional mail server. We have ours set to:
>>
>> #queue resources
>> smtp_accept_max=250
>> smtp_accept_queue=25
>>
>> This is exim but other MTA's like postfix and sendmail should have
>> options that do the same.
>>
>> David
>>
>
>
> Any idea why this works?
>
> I enabled debugging on James, and during normal operation for
> production, it uses at most 2 threads on our normal mail server.
>
> What really seemed to make our problem go away is to use a non load
> balanced instance for mail.
>
> Mike