Large email list - slow sending

I am trying to send a segment email to about 60K contacts through Sparkpost’s SMPT. My best achievement was one email per two seconds so it would take me minimum a day and a half to complete.



Is there anything I can do to speed up the process? Changing settings etc.?



And also if I could use Sparkpost’s API would it be faster. Currently when I try to test it I do receive the test message however with the segment email no messages are sent.



And also what is the way of keep Mautic sending the emails without staying on the page with the progress bar?

I am trying to send a segment email to about 60K contacts through Sparkpost’s SMPT. My best achievement was one email per two seconds so it would take me minimum a day and a half to complete.

Is there anything I can do to speed up the process? Changing settings etc.?

And also if I could use Sparkpost’s API would it be faster. Currently when I try to test it I do receive the test message however with the segment email no messages are sent.

And also what is the way of keep Mautic sending the emails without staying on the page with the progress bar?