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SMTP Logo

Transactional and Email Relay API

Last updated: March 2026

SMTP Alternatives & Competitors (2026)

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Mail Merge Toolkit logo

Personalizes mass mailings from Outlook with merge fields

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Mail Merge Toolkit
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SMTP

1.9

5.0

Value for money

3.1
24
per user

Starting price

25
flat rate/per month

0.2

4.0

Functionality

3.8

Email Marketing

5/5

Email Tracking

5/5

Email Management

4/5

Top Features

Real-Time Data

5/5

List Management

4.5/5

Email Marketing

3.8/5