Lettr vs SMTP2GO

See how their public offers line up before you choose your own position. Prices stay in the currency, billing schedule, and charged unit each vendor publishes.

Lettr

See full pricing history

USD · US · source: lettr.com

Plan	Pricing	Charged by	Offer type
Free	Free $0 /mo	Flat	Standalone · Free
Pro	USD 15 monthly $15 /mo	Flat	Standalone · Fixed
Business	USD 110 monthly $110 /mo	Flat	Standalone · Fixed
Enterprise	Contact sales Contact sales	Flat	Standalone · Contact sales

SMTP2GO

See full pricing history

USD · US · source: www.smtp2go.com

Plan	Pricing	Charged by	Offer type
Starter	USD 10 monthly $10/mo	Flat · /mo	Standalone · Fixed
Professional	USD 75 monthly $75/mo	Flat · /mo	Standalone · Fixed
Free	Free $ 0/	Flat	Standalone · Free

What each plan includes

Feature names follow each vendor’s own pricing page, so verify the wording before treating them as exact equivalents.

Lettr

Free

Highlights Monthly emails: 3,000

Included
Highlights Sending domains: 1

Included
Highlights Data retention: 7 days

Included

Pro

Highlights Monthly emails: 50,000

Included
Highlights Sending domains: 10

Included
Highlights Data retention: 30 days

Included

Business

Highlights Monthly emails: 200,000

Included
Highlights Sending domains: Unlimited

Included
Highlights Dedicated IPs: Add-on

Included

Enterprise

Highlights Monthly emails: Unlimited

Included
Highlights SSO/SAML: Included
Highlights SLA guarantee: Included

SMTP2GO

Starter

Highlights 10,000 emails/mo: Included
Highlights 30 days of email reporting: Included
Highlights Ticket/chat/phone support: Included
Highlights Subaccount management: Included
Highlights SMS messaging: Included

Professional

Highlights 100,000 emails/mo: Included
Highlights 30 days of email reporting: Included
Highlights Ticket/chat/phone support: Included
Highlights Subaccount management: Included
Highlights Dedicated IP address: Included
Highlights Email testing tools: Included
Highlights SMS messaging: Included

Free

How their prices changed

Each dated row shows the public prices observed when that vendor’s pricing page changed.

Lettr

August 27, 2026 Source
- Free: Free
- Pro: USD 15 monthly
- Business: USD 110 monthly
- Enterprise: Contact sales

SMTP2GO

August 27, 2026 Source
- Starter: USD 10 monthly
- Professional: USD 75 monthly
- Free: Free