Large volume mails with Google apps

My web application is hosted on IIS7. Google Apps has been working great for my SMTP needs. Now that I have a fairly large userbase along with a forum, there are many email notices being sent daily.

Google Apps has a limit on 500 emails per 24 hours per smtp user, which sometimes cause a conflict with my needs.

In an attempt to fix this, I created 4 google app users to rotate the load and set up an SQL job every 8 hours to change the HostSettings data for SMTPUsername.

Also I'm concerned about sending monthly newsletters now becau开发者_JAVA百科se I have about 40K users and obviously this is a nightmare to do with Google Apps.

I don't want to use SmarterMail provided by my ISP because google apps is very easy to administer.

Can you please give me a solution to overcome this? Whether relay SMTP server solves this?

Have you talked with Google about this? Since you have such a huge user base, it sounds like you may be able to pay money to receive more "unlimited" support.

This is more of an infrastructure question, and I'm not 100% sure, but I'd guess that creating multiple accounts just for mass mailing is probably against the terms of service of your Google apps account.

Creating multiple accounts is allowed. However, Google Apps is generally not meant to be a bulk message sending tool so you're going to face some pain using it instead of paying for a service that is designed for bulk sending.

You might consider upgrading to Google Apps for Business. This will bump your per user daily sending limit to 2,000 messages / day.

http://support.google.com/a/bin/answer.py?hl=en&answer=166852

Jay