Constant Contact vs SMTP2GO

Side-by-side comparison of features, pricing, and integrations.

Quick Verdict

Constant Contact offers fewer features (51 vs 53) and more integrations (30 vs 3). Starting price: Constant Contact at $20/mo vs SMTP2GO at $10/mo. Constant Contact has 50 unique features while SMTP2GO has 52 unique features, with 1 features in common.

Constant ContactSMTP2GO
CategoryEmail MarketingEmail Marketing
Total Features5153
AI-Powered Features40
Starting Price$20/mo$10/mo
Pricing Tiers44
Integrations303
Shared Features1
Shared Integrations2
Data Quality75%90%

Feature Comparison by Category

Account Management (0 vs 4)

FeatureConstant ContactSMTP2GO
API Keys
SMTP Users
Subaccounts
Team Members & Roles

Analytics (3 vs 1)

FeatureConstant ContactSMTP2GO
Analytics & Reporting
Behavior Tracking
Customer Journey Analytics
Deep Insights

Authentication (0 vs 1)

FeatureConstant ContactSMTP2GO
Automatic DKIM/SPF

Authentication & Security (0 vs 4)

FeatureConstant ContactSMTP2GO
IP Authentication
SPF and DKIM
TLS and SSL Encryption
Verified Senders

Automation (4 vs 0)

FeatureConstant ContactSMTP2GO
Birthday Emails
Marketing Automation
Predictive Send Time
Welcome Series

Brand Management (1 vs 0)

FeatureConstant ContactSMTP2GO
Brand Kit

CRM (2 vs 0)

FeatureConstant ContactSMTP2GO
Contact Management
Lead Scoring

Communications (0 vs 1)

FeatureConstant ContactSMTP2GO
SMS Messaging

Compliance (2 vs 1)

FeatureConstant ContactSMTP2GO
Compliance Reports
GDPR Compliance
Unsubscribe Management

Compliance & Archives (0 vs 1)

FeatureConstant ContactSMTP2GO
Email Archiving

Compliance & Certifications (0 vs 1)

FeatureConstant ContactSMTP2GO
ISO27001 & ISO9001 Certification

Compliance & List Management (0 vs 1)

FeatureConstant ContactSMTP2GO
Unsubscribe Management

Contact Management (2 vs 0)

FeatureConstant ContactSMTP2GO
Segmentation
Subscriber List Import

Content Management (1 vs 0)

FeatureConstant ContactSMTP2GO
Content Calendar

Core Sending (0 vs 2)

FeatureConstant ContactSMTP2GO
Email API
SMTP Relay

Customization (1 vs 0)

FeatureConstant ContactSMTP2GO
White Label Options

Data Management (1 vs 0)

FeatureConstant ContactSMTP2GO
Data Export

Deliverability (0 vs 3)

FeatureConstant ContactSMTP2GO
Blacklist Monitoring
Feedback Loop Monitoring
Spamtrap Detection

Domain Management (1 vs 0)

FeatureConstant ContactSMTP2GO
Custom Domains

Ecommerce (2 vs 0)

FeatureConstant ContactSMTP2GO
Abandoned Cart Recovery
Product Recommendations

Email Deliverability (2 vs 0)

FeatureConstant ContactSMTP2GO
Deliverability Monitoring
Spam Checking

Email Marketing (10 vs 0)

FeatureConstant ContactSMTP2GO
A/B Testing
AI Email Generator
Drag-and-Drop Editor
Email Campaigns
Email Preview
Email Signature Management
Email Templates
Email Templates Library
Mobile Preview
Scheduled Sending

Events (1 vs 0)

FeatureConstant ContactSMTP2GO
Event Marketing

Infrastructure (0 vs 6)

FeatureConstant ContactSMTP2GO
Additional Dedicated IPs
Best-Path Routing
Dedicated IP
IP Pools
Location Specific Services
Multiple Global Data Centers

Infrastructure & Reliability (0 vs 2)

FeatureConstant ContactSMTP2GO
Guaranteed Uptime SLA
Redundant Multi Data Center Infrastructure

Integration (1 vs 0)

FeatureConstant ContactSMTP2GO
API Access

Integrations (0 vs 1)

FeatureConstant ContactSMTP2GO
Third-party Integrations

Integrations & Webhooks (0 vs 1)

FeatureConstant ContactSMTP2GO
Webhooks

Lead Generation (1 vs 0)

FeatureConstant ContactSMTP2GO
Form Builder

List Management (0 vs 1)

FeatureConstant ContactSMTP2GO
Suppression Management

Loyalty (2 vs 0)

FeatureConstant ContactSMTP2GO
Loyalty Program Management
Referral Program

Mobile (1 vs 0)

FeatureConstant ContactSMTP2GO
Mobile App

Monitoring & Alerts (0 vs 1)

FeatureConstant ContactSMTP2GO
Comprehensive Monitoring & Alerts

Nonprofit (1 vs 0)

FeatureConstant ContactSMTP2GO
Donation Management

Personalization (1 vs 0)

FeatureConstant ContactSMTP2GO
Dynamic Content

Reporting & Analytics (0 vs 7)

FeatureConstant ContactSMTP2GO
Activity Storage Duration Extension
Data Exports
Email Auditing
Real Time Activity Log
Scheduled Reports
Summary & Charts
Visual Reports

SMS (1 vs 0)

FeatureConstant ContactSMTP2GO
SMS Marketing

Security (1 vs 2)

FeatureConstant ContactSMTP2GO
2FA (Two-Factor Authentication)
IP Allowlisting
Two-Factor Authentication

Security & Control (0 vs 1)

FeatureConstant ContactSMTP2GO
Restrict Recipients & Senders

Security & Tracking (0 vs 1)

FeatureConstant ContactSMTP2GO
SSL/HTTPS Link Rewriting & Tracking

Social Media (3 vs 0)

FeatureConstant ContactSMTP2GO
Social Media Integration
Social Media Monitoring
Social Media Posting

Support (2 vs 4)

FeatureConstant ContactSMTP2GO
Customer Support Chat
Knowledge Base
Live Chat Support
Priority Support
Ticket-based Support
Toll-free Phone Support

Support & Documentation (0 vs 1)

FeatureConstant ContactSMTP2GO
Knowledgebase

Surveys (1 vs 0)

FeatureConstant ContactSMTP2GO
Customer Survey Tool

Team Management (1 vs 0)

FeatureConstant ContactSMTP2GO
Multi-User Access

Templates & Design (0 vs 1)

FeatureConstant ContactSMTP2GO
API Templates

Testing (0 vs 1)

FeatureConstant ContactSMTP2GO
Robust Testing

Testing & Development (0 vs 2)

FeatureConstant ContactSMTP2GO
Email Testing Tools
Sandbox Mode

Tracking & Analytics (0 vs 1)

FeatureConstant ContactSMTP2GO
Open and Click Tracking

Webinars (1 vs 0)

FeatureConstant ContactSMTP2GO
Webinar Integration

Website Builder (1 vs 0)

FeatureConstant ContactSMTP2GO
Landing Pages

Unique Features

Only in Constant Contact (50)

Analytics & Reporting
Behavior Tracking
Customer Journey Analytics
Birthday Emails
Marketing Automation
Predictive Send Time
Welcome Series
Brand Kit
Compliance Reports
Segmentation
Subscriber List Import
Content Calendar
Contact Management
Lead Scoring
White Label Options
Data Export
Custom Domains
Abandoned Cart Recovery
Product Recommendations
Deliverability Monitoring

+ 30 more unique features

Only in SMTP2GO (52)

API Keys
SMTP Users
Subaccounts
Team Members & Roles
Deep Insights
Automatic DKIM/SPF
IP Authentication
SPF and DKIM
TLS and SSL Encryption
Verified Senders
SMS Messaging
GDPR Compliance
Email Archiving
ISO27001 & ISO9001 Certification
Email API
SMTP Relay
Blacklist Monitoring
Feedback Loop Monitoring
Spamtrap Detection
Additional Dedicated IPs

+ 32 more unique features

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