Best for
Best for small businesses that want an email marketing platform with templates, automation and an AI content generator, and phone support to get started.
- Freelancers
- Small and mid-sized
Email Marketing Comparison
Constant Contact vs. Mailjet
At a glance
At a glance
Best for
Best for teams and developers that want one platform for both marketing campaigns and transactional email, priced by send volume.
- Freelancers
- Small and mid-sized
- Enterprise
Cataleo does not name a winner. Both statements come from the vendors themselves.
Full Comparison
| Criterion | Constant Contact | Mailjet |
|---|---|---|
| Starting price | From $12 / month Lite plan; the price scales with the number of contacts. Prepaying for 12 months saves up to 15 percent. | lower value From $9 / month Starter plan; priced by monthly email volume. A free plan is available. |
| Free trial | Free trial available, no credit card required | Free plan with 6,000 emails per month (200 per day) |
| API | Yes, a v3 REST API for contacts and email campaigns with webhooks and OAuth 2.0 | Yes, a Send API and SMTP relay on all paid plans |
| Hosting | Cloud (SaaS) | Cloud (SaaS) |
| Made in | United States | Not stated |
| Campaign types | Yes, email campaigns, with 500 SMS messages a month and social posts on the Premium plan | Yes, marketing campaigns and newsletters plus transactional email, with landing pages on Premium |
| Automation and journeys | Yes, automation templates, one on Lite, three on Standard and unlimited custom automations on Premium | Yes, automations on the Premium plan |
| Segmentation and personalisation | Yes, ten custom segments on Standard and unlimited custom segments with dynamic content on Premium | Yes, segmentation from the Essential plan, with dynamic content on Premium |
| Templates and editor | Yes, an email editor with templates and an AI content generator | Yes, an advanced drag-and-drop editor on every plan |
| Deliverability and testing | Yes, subject line A/B testing and automatic resend to non-openers on Standard and Premium | Yes, A/B testing on Premium, with a dedicated IP available on higher-volume plans |
| Ecommerce and CRM data | Yes, contact management with integrations, plus revenue reporting on the Premium plan | Through connectors rather than a built-in store sync: Mailjet ships its own plugins for WordPress with WooCommerce and for PrestaShop, while the other ecommerce and CRM entries in its integrations directory, among them Shopify, HubSpot and Salesforce, are connected through Zapier or another iPaaS partner |
| Integrations and API | Yes, a v3 REST API for contacts and email campaigns with webhooks and OAuth 2.0 | Yes, a Send API and SMTP relay on all paid plans |
| AI features | Yes | Yes |
| MCP-ready | No | stated Yes |
| Deployment | Cloud (SaaS), Browser-based | Cloud (SaaS), Browser-based |
| Support | Phone, Chat | more entries Email helpdesk, Phone, Chat |
| Onboarding | Not stated | Documentation and knowledge base, Video tutorials, Guided onboarding |
| Company size | Freelancers, Small and mid-sized | more entries Freelancers, Small and mid-sized, Enterprise |
| Integrations | Not stated | WordPress, WooCommerce, PrestaShop, Drupal, Joomla, Squarespace, Webflow, Shopify, BigCommerce, Stripe, PayPal, Salesforce, HubSpot, Pipedrive, Zoho, Microsoft Dynamics CRM, Segment, Zapier, Make, n8n, Slack, Zendesk, Intercom, Google Sheets, Airtable, Typeform, Sinch Engage |
Add a tool
Adds a column to the table, from the tools in this category.
Row where the values differ The small markers point at the lower number, the longer list or the stated feature. They describe the data, they are not a verdict.
The short version
Key Differences
- Starting price Constant Contact From $12 / month Mailjet From $9 / month
- Free trial Constant Contact Free trial available, no credit card required Mailjet Free plan with 6,000 emails per month (200 per day)
- Company size Constant Contact Freelancers, Small and mid-sized Mailjet Freelancers, Small and mid-sized, Enterprise
- Support Constant Contact Phone, Chat Mailjet Email helpdesk, Phone, Chat
- MCP-ready Constant Contact No Mailjet Yes
Every line is one datapoint from the table above, picked automatically. Nothing here is written text.
The trade-offs
Strengths and Limitations
Constant Contact
Strengths
- AI content generator for on-brand emails, texts and social posts
- Automatic resend to non-openers and subject line A/B testing on the paid plans
- v3 REST API with webhooks and OAuth 2.0
- Prepaying for 12 months saves up to 15 percent
Limitations
- Prices scale with the number of contacts
- The Lite plan is limited to one user and one automation template
Mailjet
Strengths
- Priced by email volume, with unlimited contacts on the Essential and Premium plans
- Advanced drag-and-drop editor on every plan, including the free tier
- Send API and SMTP relay for transactional email on all paid plans
- Free plan with 6,000 emails per month
Limitations
- Automations, A/B testing and dynamic content are reserved for the Premium plan
- The Free and Starter plans cap contacts at 1,000 and 2,000
Plans
Pricing
Constant Contact
- Lite From $12 / month One user, one automation template and basic reporting, with monthly sends up to 10x the number of contacts. Scales with contacts.
- Standard From $35 / month Three users, email scheduling, subject line A/B testing, resend to non-openers, three automation templates, AI campaign building and ten custom segments.
- Premium From $80 / month Unlimited users, unlimited custom automations and segments, dynamic content, revenue reporting, dedicated support and 500 SMS messages a month.
Mailjet
- Free $0 / month 6,000 emails per month (200 per day), up to 1,000 contacts, with the advanced drag-and-drop editor.
- Starter From $9 / month 8,000 emails per month, up to 2,000 contacts, with online support.
- Essential From $17 / month 15,000 emails per month, unlimited contacts, segmentation and no daily send limit.
- Premium From $27 / month Adds automations, A/B testing, dynamic content, landing pages and up to 20 subaccounts, plus priority support, with phone and chat support from 50,000 emails a month.
- Custom Not stated Custom enterprise plans for high-volume senders, with a dedicated technical account manager, unlimited subaccounts, phone and chat support and guided onboarding, training and consulting.
What users say
Review Scores · opens after launch
Constant Contact
- Ease of use
- Not rated yet
- User interface
- Not rated yet
- Onboarding
- Not rated yet
- Support and service
- Not rated yet
- Value for money
- Not rated yet
- Features
- Not rated yet
No reviews yet. Be the first to review this tool. Every review is checked for fairness before it appears, and the vendor cannot have one removed.
Mailjet
- Ease of use
- Not rated yet
- User interface
- Not rated yet
- Onboarding
- Not rated yet
- Support and service
- Not rated yet
- Value for money
- Not rated yet
- Features
- Not rated yet
No reviews yet. Be the first to review this tool. Every review is checked for fairness before it appears, and the vendor cannot have one removed.
Where this comes from
Where this comes from
Constant Contact https://www.constantcontact.com · checked against the official source on 2026-08-19
Mailjet https://www.mailjet.com · checked against the official source on 2026-08-21
This table lists factual criteria taken from information the vendors publish themselves. For how we put it together, see the methodology.