Mail Baby
Reliable mail relay service by InterServer
From $1/mo
πΈ Email Tools Under $20/month
Affordable email marketing platforms β starting prices at $20/mo or below (including free plans). Sorted free-first, then by price.
10 tools Β· Updated July 2026
MySMTP
Simple, efficient SMTP solution for businesses
From $3.92/mo
Mails.so
Modern email platform built for developers
From $4.8/mo
SendX
Affordable email marketing with unlimited sends
From $9.99/mo
Constant Contact
Email marketing for small businesses with rich templates
From $12/mo
Verticle Response
Email marketing with social and event tools
From $13/mo
AWeber
Email marketing for entrepreneurs and small businesses
From $15/mo
Postmark
Transactional email service with industry-leading inbox rate
From $15/mo
GetResponse
All-in-one marketing platform with landing pages and webinars
From $19/mo
Mail250
Cost-effective email marketing for small businesses
From $20/mo