javamail vs sendmail performance during bulk email

Posted by Glenn2041 on Stack Overflow See other posts from Stack Overflow or by Glenn2041
Published on 2009-11-22T21:48:16Z Indexed on 2010/04/23 0:33 UTC
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Hi all,

I'm writing a Java mass emailer application to send out emails to send between 50,000 to 100,000 a day to users.

The current plan is to delegate the sending to delegate to sendmail (on the local unix server).

From our testing sendmail is sending a maximum of 5 emails per second.

Would JavaMail be a faster option?

Does anyone know what a faster way to send emails. We want to get this process out as quick as possible.

Edit: BTW, a pdf will be attached too

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