by Google
Business email, calendar and docs on your own domain
The page offers a 14-day trial with no cost for all plans.
by Amazon Web Services
Low-cost email sending on AWS
Cloud email service for sending at scale from applications.
Free plan. The page mentions an AWS Free Tier that provides free, hands-on experience with AWS products and services.
The page does not list a specific cheapest paid price, stating instead that AWS offers a pay-as-you-go approach where you pay only for the individual services you need.
From their website — their pricing page, checked 2026-11-04
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by Google
Business email, calendar and docs on your own domain
The page offers a 14-day trial with no cost for all plans.
by Instantly
Send cold email from many inboxes with warm-up included
The cheapest paid plan is the Growth plan at $47/mo.
by Twilio
Send transactional and marketing email reliably
The page states you can sign up for a free trial with no credit card required.