Coresender vs Lettr

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.

Coresender

See full pricing history

EUR · US · source: coresender.com

Plan	Pricing	Charged by	Offer type
Developer	Free Free developer plan	Flat · published subscription	Standalone · Free
Silver	EUR 24 monthly €24 monthly	Flat · published subscription	Standalone · Fixed
Gold Highlighted	EUR 90 monthly €90 monthly	Flat · published subscription	Standalone · Fixed
Platinum	EUR 320 monthly €320 monthly	Flat · published subscription	Standalone · Fixed

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

What each plan includes

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

Coresender

Developer

Official plan card Emails: 100/month

Limited
Official plan card Email API: Included
Official plan card No credit card required: Included

Silver

Official plan card Emails: 50,000/month

Limited
Official plan card Log retention: 15 days

Limited
Official plan card Shared IP address: Included

Gold

Official plan card Emails: 250,000/month

Limited
Official plan card Dedicated IP: 1

Limited
Official plan card Log retention: 30 days

Limited

Platinum

Official plan card Emails: 1,000,000/month

Limited
Official plan card Dedicated IP: 1

Limited
Official plan card Log retention: 45 days

Limited

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

How their prices changed

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

Coresender

August 27, 2026 Source
- Developer: Free
- Silver: EUR 24 monthly
- Gold: EUR 90 monthly
- Platinum: EUR 320 monthly

Lettr

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