4. Create a new SMTP Account and enter the SMTP settings from step 2.
You can use port 587.
Click “Create” and you’re all set! MergeMail will automatically verify that the SMTP settings are working.
Choosing a Mailjet Plan
Mailjet will let you send 6,000 emails for free per month. If you need more emails than that, you can find more information about their plans on their Pricing page.