The module enhances the ability of the application to execute several parts of an email campaign, simultaneously. The parts of the email that runs simultaneously are called threads in the process. The multi-threading module of MUMARA is too impeccably programmed that it does let the threads interfere with one another, no matter how many threads it runs at one instance.
Reach “Multi-Threading” under “Settings” in the left side navigational menu. The following window will appear on your screen. The two fields that appear on your screen are discussed, followed by the image below.

The first field offers numbers in the dropdown. Select the number of threads you want to use while sending an email campaign is in process. Select as many threads as you want to use during the sending of an email campaign, and move forward.
There are actually two categories of batch sizes from which you can select your desired one. Both the categories are discussed as follows. Let MUMARA Decide- Selection of this option means that MUMARA will decide on the number of the batch sizes it will use for each thread during the sending of the email campaign. The batch size will automatically be determined after dividing the total number of emails to be sent in one campaign, on the number of threads you have selected. The following example well elaborates the process.
For example, you have scheduled a campaign for a list consisting of 100,000 records, the selected numbers of threads are 5 and the batch size option is set to the first option “Let MUMARA Decide”. In this case, application will automatically divide the total number of emails to be sent (100,000) on the number of threads you have (5). It means the batch size for the campaign would be 20000. 5 threads will run simultaneously and each thread will be completing its course of sending 20000 emails. The first thread will be sending emails from 1 to 20000, while the second thread will start from 20001 to 40000, and the process continues for the third, fourth, and fifth threads also.
Other than the first option “Let MUMARA Decide”, you are offered the ability to select your desired batch size from the dropdown, the batch size starts from 100 and ends with 10000 in the dropdown. Select the desired batch size and proceed.
Once you complete your preferred setting for multi-threading, click submit to save your preferred settings for multi-threading. However, you will also be able to select the number of threads during the scheduling of the email campaign. But still, the default multi-thread settings will be managed from “Multi-Treading” under settings in the left navigation.
Read- Schedule Email Campaign