How can I work with/around Gmail's SMTP outbound sending limits?

Question

I\'m using my Gmail Apps for Domain account to send email within my rails application for standard automated emails (user signup, forgot password, notify admin of new comment, e

Answer 1

Store the available usernames in a table in the database, along with a 'last-modified', 'last-reset' and a sent count. You can then query this when sending an email to find the least used email address currently. Then increment the sent count and last-modified account. The 'last-reset' value can be used for your cleanup code so that you reset the counts each 24 hour period.

This also makes it easy to add new email accounts, retire accounts you aren't using anymore, implement in a different app, etc. as it's all just in a database table that you can change when required.