How we make this list: we compare pricing pages, product documentation and public user reviews. Ratings come from G2, Capterra or Trustpilot, with the date we checked them.
Key takeaways
- Mailchimp leads for small businesses that want templates, automation, and analytics in one familiar platform.
- Brevo suits senders who want email plus SMS with pricing based on sends rather than contacts.
- ConvertKit, now Kit, suits creators and newsletter writers who want simple automation and subscriber tagging.
- Deliverability matters more than design tools, so check sender authentication, list hygiene, and spam complaint rates.
- Most services offer free tiers up to a contact or send limit, which suits small lists before they grow.
Quick comparison
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The best mass email services
#1Mailchimp
Best for: Small business email4.4/5 on
G2 (5,436 reviews, checked Oct 2026)
Visit mailchimp.com
Starting priceFree
Free planYes
Mailchimp is the most widely used mass email service for small businesses, with drag-and-drop templates, automation for welcome series and abandoned carts, audience segmentation, and analytics that show opens, clicks, and revenue. Its free tier covers small lists, and its integration library connects to Shopify, WordPress, and many other tools. The platform also covers landing pages, ads, and social posting.
The trade-offs are price and complexity. Costs rise fast as contact counts grow, since Mailchimp charges by audience size, and the interface has grown complex with many features. Support on free plans is limited. Even so, Mailchimp suits small businesses that want a familiar, full-featured email platform with templates and automation in one place.
What we like- Large template library
- Automation and segmentation
- Strong analytics and integrations
Watch out for- Pricing grows fast with contacts
- Interface has grown complex
- Support is limited on free plans
#2Brevo
Best for: Email plus SMS4.5/5 on
G2 (2,747 reviews, checked Oct 2026)
Visit brevo.com
Starting priceFree
Free planYes
Brevo, formerly Sendinblue, prices by emails sent rather than contacts stored, which suits lists with many inactive subscribers that would cost more on Mailchimp. It covers email, SMS, and WhatsApp campaigns, plus automation, segmentation, and a CRM, in one platform. The free tier allows a limited number of sends per day, which suits small senders testing the platform.
The limits are design and limits. Template design trails Mailchimp, the free tier caps daily sends, and support varies by plan. Even so, Brevo suits senders who want email plus SMS with send-based pricing and solid automation tools.
What we like- Pricing by sends, not contacts
- Email plus SMS and WhatsApp
- Good automation tools
Watch out for- Template design trails Mailchimp
- Free tier has daily send limits
- Support varies by plan
Starting priceFree
Free planYes
ConvertKit, now branded Kit, is built for creators, writers, and newsletter publishers, with simple landing pages, forms, visual automation, and subscriber tagging. It suits authors, podcasters, and course sellers who want to grow a list and send sequences without complex design tools. The free tier covers small lists, and paid plans add automation and reporting.
The trade-offs are design and price. Email templates are basic compared with Mailchimp, pricing grows with subscriber counts, and e-commerce tools are thinner. Even so, ConvertKit suits creators who want simple, effective newsletter automation with tagging and sequences.
What we like- Simple creator-focused design
- Visual automation
- Subscriber tagging and segments
Watch out for- Template design is basic
- Pricing grows with subscribers
- Fewer e-commerce tools
Starting priceFree
Free planYes
MailerLite is a low-cost email service with a clean interface, good templates, automation, landing pages, and analytics at prices below Mailchimp for similar list sizes. It suits small businesses, nonprofits, and creators who want solid email tools without a large bill, and its free tier covers small lists with monthly send limits.
The limits are approval and ecosystem. New accounts go through an approval process that checks list sources, integrations are fewer than Mailchimp, and support is email-based. Even so, MailerLite suits budget-conscious senders who want clean, capable email tools at a low price.
What we like- Low prices
- Clean interface
- Good templates and automation for the price
Watch out for- Approval process for new accounts
- Fewer integrations than Mailchimp
- Support is email-based
Starting priceSee website
Free planNo
Constant Contact is a long-running email service for small businesses, nonprofits, and event organizers, with easy templates, event registration tools, and social posting alongside email. Its support and onboarding are strong, with phone help and guided setup that suit non-technical users. The platform covers contacts, lists, and basic automation clearly.
The trade-offs are price and automation. There is no free tier, pricing is higher than MailerLite or Brevo for similar lists, and automation is basic compared with Mailchimp. Even so, Constant Contact suits small businesses and event organizers who want easy email plus events with strong human support.
What we like- Easy templates
- Event marketing tools
- Good support and onboarding
Watch out for- No free tier
- Pricing is higher than rivals
- Automation is basic
Starting priceFree
Free planYes
SendGrid, from Twilio, is an email platform built for developers and high-volume senders, covering transactional email such as receipts and password resets plus marketing campaigns through one API. Its deliverability tools, including sender authentication, dedicated IPs, and event webhooks, suit apps and SaaS firms that send large volumes. Analytics track delivery, opens, clicks, and bounces in detail.
The limits are design and focus. The interface is developer-focused, marketing templates are basic compared with Mailchimp, and support varies by plan. Even so, SendGrid suits developers and high-volume senders who need reliable transactional plus marketing email through APIs.
What we like- Strong deliverability and APIs
- Transactional plus marketing email
- Good analytics
Watch out for- Interface is developer-focused
- Marketing templates are basic
- Support varies by plan
Starting priceSee website
Free planNo
Campaign Monitor is a design-led email platform known for beautiful templates and a polished builder, plus segmentation, automation, and analytics for agencies and brands. It suits design-conscious senders who want emails that look great without custom code, and its template library covers many industries and occasions. Agency tools help firms manage many clients.
The trade-offs are price and automation. Pricing is higher than MailerLite or Brevo, there is no free tier, and automation trails Mailchimp. Even so, Campaign Monitor suits brands and agencies that put email design first and want polished templates with solid analytics.
What we like- Beautiful templates
- Strong design tools
- Good analytics and segmentation
Watch out for- Pricing is higher than rivals
- No free tier
- Automation trails Mailchimp
#8AWeber
Best for: Simple autoresponders4.2/5 on
G2 (650 reviews, checked Oct 2026)
Visit aweber.com
Starting priceFree
Free planYes
AWeber is a long-running email service known for simple autoresponders, landing pages, and templates, with a free tier for small lists. It suits small businesses, bloggers, and coaches who want straightforward email sequences without complex automation, and its support includes tutorials and live help. The platform has served small senders for over two decades.
The trade-offs are polish and depth. The interface feels dated next to Mailchimp or MailerLite, automation is basic, and pricing grows with subscriber counts. Even so, AWeber suits small senders who want simple, reliable autoresponders from a vendor with a long history.
What we like- Simple autoresponders
- Landing pages and templates
- Long track record
Watch out for- Interface feels dated
- Automation is basic
- Pricing grows with subscribers
How we chose
We compared mass email services on deliverability tools, templates, automation, segmentation, analytics, and pricing, favoring services with proven sending reputations and clear free tiers. We excluded services that only send transactional email without marketing tools, except SendGrid, which covers both. We also weighed migration ease, since moving a large list with tags, segments, and automations takes real work, and vendors differ in how well they import that history. Prices change often and vary by contacts or sends, so we wrote See website where a vendor does not publish a clear starting price.
Buying guide
Start by sizing your list and send volume, since pricing models differ: Mailchimp and ConvertKit charge by contacts, while Brevo charges by sends, so the cheapest option depends on your list shape. A list with many inactive contacts costs more on contact-based pricing, while a list with frequent sends costs more on send-based pricing, so model both before choosing. Next, check deliverability basics: set up SPF, DKIM, and DMARC authentication, clean bounced and inactive addresses, and avoid bought lists, since a bad sender reputation hurts delivery on any platform. Warm up new sending domains gradually too, since a sudden large send from a new domain looks like spam to mailbox providers.
Then test templates and automation with a real campaign before committing, since design tools and automation builders differ more in use than in feature lists. Send to a small segment first and check rendering on mobile and desktop, since most readers open email on phones. Check analytics too, since open rates are now less reliable due to privacy changes, and click and conversion rates matter more. Finally, confirm unsubscribe and compliance handling, since CAN-SPAM and GDPR rules require clear opt-outs and consent records, and good platforms handle those automatically. Keep consent records for every subscriber as well, since audits and complaints are far easier to answer with proof of opt-in. Also review your list every quarter and remove long-term inactive addresses, since sending to dead addresses hurts deliverability and wastes money on contact-based plans.
Frequently asked questions
What is a mass email service?
It is a platform for sending newsletters, promotions, and announcements to large lists, with templates, automation, analytics, and deliverability tools that handle bounces, unsubscribes, sender authentication, and spam compliance.
How much does mass email cost?
Free tiers cover small lists on Mailchimp, Brevo, ConvertKit, MailerLite, SendGrid, and AWeber, while paid plans start at low monthly rates and grow with contacts or sends. Large lists cost far more, so compare pricing for your exact list size and send frequency before committing.
Which service has the best deliverability?
Deliverability depends more on sender practices than on vendor alone, but SendGrid, Mailchimp, and Brevo all offer strong authentication and reputation tools. Clean lists, authentication, consistent sending volume, and low complaint rates matter most, and no vendor can fix a dirty list.
Can I send to a bought email list?
No, and you should not. Bought lists harm deliverability, break platform rules, and violate spam laws in many places. Build lists through opt-ins from your own audience instead, such as website forms, checkout checkboxes, and event sign-ups.
What is the difference between transactional and marketing email?
Transactional email covers receipts, password resets, and order updates triggered by user actions, while marketing email covers newsletters and promotions sent to lists. Some platforms, such as SendGrid, handle both through one account and API.
Sources we checked (0)
Is your product missing or out of date?
We review this list regularly. Vendors can request a listing, send updated pricing or ask about featured placement.
Shihab Mia · Founder, Rankite
Shihab has 5+ years in B2B and SaaS SEO. He writes Rankite's software buying guides from pricing pages, documentation and public user reviews. More about Shihab.
ConvertKit
MailerLite
Constant Contact
SendGrid
Campaign Monitor