Email Tracking & Reporting

Hello,

I have couple cpanel servers and now looking to setup smarthost (since we are unable to proactively manage the outbound spam resulting in issues). I am now looking for suggestions and clarity on the below so we can setup the structure in the most effective manner.

1- How can i pull sent email count from SSH on per account level for lets say 1st Mar - 31st Mar, i would like to see the actual usage to estimate the load for the smarthost.

2- For all the above emails, i would like to see how many of them were delivered, rejected, frozen & subsequently removed by the admin.

3- When we setup mailchannels for e.g. is there a way to direct email traffic to them only when the email is generated from smtp and not from the PHP mail functions for example.

4- Regularly what are the restrictions in place by the web hosting companies on PHP mail?

5- When you sent hourly limit per account, it applies to SMTP and also on the PHP mails generated by that account? If yes, any emails on top of that will be frozen in the queue?

6- Is there a way / plugin that can auto suspend the account in case of the spam/high sending load from PHP mail? Since mailchannel will charge per email we need some of the ways to handle this proactively without depending on resources to do it.

Welcome all suggestions from the experts that can help streamline this - we do look at the queues on regular intervals but it takes only couple hours sometimes that huge spam is queued and the IPs are hurt.

Thanks in advance for all the help!