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Apps prioritizing transactional email deliverability
Transactional only (no bulk)
Typical cost: $50/mo
Apps prioritizing transactional email deliverability
2 screenshots
Postmark focuses on delivering transactional emails fast. Known for excellent deliverability, detailed bounce handling, and a developer-friendly approach.

Mailchimp
FreemiumAll-in-one Marketing Platform for small business.
Best for: Small businesses needing an all-in-one marketing platform with proven track record

Loops
FreemiumEmail marketing built for modern startups.
Best for: Developer-focused startups who want modern email infrastructure with API flexibility

HubSpot
FreemiumFree CRM with powerful marketing, sales, and service tools.
Best for: Startups wanting a full-featured free CRM that can scale with marketing and sales tools

Dripify
PaidLinkedIn and email sales automation on complete autopilot.
Best for: B2B startups and sales teams doing LinkedIn prospecting and email outreach at scale
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