Postmark vs Robly: Email Marketing Comparison (2026)

An independent side-by-side comparison of Postmark and Robly for email marketing buyers — pricing, features, integrations, and how often each is cited by major AI engines.

AI Citation Scorecard

How often each is cited by major AI engines when buyers ask email marketing questions. Last 90 days across ChatGPT, Perplexity, Gemini, Claude, and Copilot.

Too early to call — probes still building data.
ChatGPT
Postmark
0 / 90 probes
0%
Invisible
Robly
Tracking…
No data yet
Perplexity
Postmark
0 / 91 probes
0%
Invisible
Robly
Tracking…
No data yet
Gemini
Postmark
0 / 90 probes
0%
Invisible
Robly
Tracking…
No data yet
Claude
Postmark
0 / 92 probes
0%
Invisible
Robly
Tracking…
No data yet
Copilot
Postmark
0 / 91 probes
0%
Invisible
Robly
0 / 1 probes
0%
Invisible
Scale:NoneLowFairStrongExcellent

Probes run hourly; each (engine × query) combo retests every ~3 days.

Pricing

Postmark
Starting price
$15.00/mo
Free tier
Yes
postmarkapp.com ↗
Robly
Starting price
—
Free tier
—
robly.com ↗

Key Features

Postmark
  • ✓Industry-leading deliverability rates & speed
  • ✓45-day data retention
  • ✓Detailed analytics and insights
  • ✓Unlimited emails/day
  • ✓Customizable data retention up to 365 days
  • ✓Inbound email processing
  • ✓Custom sending domains
  • ✓Bulk email API
Robly

Feature data is being indexed.

When to choose Postmark

Choose Postmark if your team prioritizes its strengths over Robly's. Full guidance populates as Postmark's feature data is indexed.

When to choose Robly

Choose Robly if your team prioritizes its strengths over Postmark's. Full guidance populates as Robly's feature data is indexed.

AI visibility profiles

Is one of these your brand?

Get the full report by email: every email marketing buyer question we ask, which engines name you, and who gets named instead.

Postmark

postmarkapp.com

Robly

robly.com

Free check

Check any brand's AI visibility — free

We ask the buyer questions in this market across ChatGPT, Claude, Gemini, Perplexity and Copilot, and show you who gets named.

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