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[slthomason]

Hi there,

As we send a campaign, I was wondering if, as it was sending, if there was a way to throttle it based off the Job-ID.  Would there be a way to do that?  Does it have to be throttled at the beginning?  Can you throttle mid-sending of the campaign?

Thanks!

[Port25-Admin2]

JobIDs are for tracking only.  You will need to use virtualMTAs if you want both tracking and control.

[slthomason]

I am not sure if this is even possible, or even a good idea, but I will ask just for info's sake ...

Is it possible to dynamically create virtualMTAs on the fly?  Would it be possible to have a pool of IPs that got assigned a virtualMTA as it got dynamically created?  i.e. a virtualMTA for each campaign?

Figured I would ask ....

[Port25-Admin1]

VirtualMTAs cannot be created on the fly.  The will need to be added to the configuration file prior to selecting them.  You could, however, automate the process of vmta creation, perhaps putting them in an include file.

[slthomason]

What is totally possible.  What is the syntax for putting them in an include file?

[Port25-Admin1]

global directive:
#
include /location/of/file
#

You can add anything to it that you would put in the regular config.

[slthomason]

Let's say we went this approach and wanted to dynamically create virtual MTAs by adding such include files and calling pmta reload.  On a high-end scale, if this were happening multiple times per minute, what would the impact be?  We can probably get into a batching type scenario where it only reloads once every minute or so ... but what will the repercussions of this be?

Thanks!

[Port25-Admin1]

Not a good idea to reload PowerMTA multiple times per minute.  If you do, it should be serialized, and not run in parallel.  Testing will show what works best in your environment.