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SaaS transparency ranking · Sales and marketing

Email marketing software

37 vendors · updated 2026-10-15 · 4 without enough data for a score

Email marketing platforms, ranked by what they publish about how they handle your subscriber data.

Public transparency score, not a product or security rating. Transparency means: published on the vendor's own site, readable without a login, found by us at the addresses we checked.

+5points above the median of every category we measure

  • Email marketing22
  • All categories17
Median transparency score, out of 100. Email marketing sits above the median across every category we measure.
  1. A0 0%
  2. B4 12%
  3. C4 12%
  4. D5 15%
  5. E3 9%
  6. F17 52%
33 vendors with a score; 4 more without a score because we could measure too little. Bands have fixed thresholds, see how the score works.
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4 without enough data for a band

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Not in the ranking

We could not measure this product with our method, so it is listed here instead of being scored. This says something about our method, not about the vendor.

Before the demo

Email marketing software: a buying checklist

Follow a subscriber from signup to the next platform.

Start with a reproducible audience

Create a new subscriber, an existing contact with changed preferences, a duplicate and a previously unsubscribed test address. Record the expected state before importing them. Build a segment from two fields, change one field and inspect who enters or leaves. Ask whether segmentation is evaluated when a campaign is scheduled or when it is sent. Keep the expected and actual recipient lists together. If contacts arrive from another system, test a delayed update and decide which system owns each field.

Verify setup and the received message

Ask the vendor to demonstrate the authentication setup for your sending domain and explain how your team notices a broken configuration. Inspect the headers of a message delivered to a test mailbox rather than relying only on a green dashboard indicator. Test the plain-text version, links and mobile rendering. Google publishes separate requirements for all senders and bulk senders to personal Gmail accounts; use its current guidance for the relevant scope. A successful test delivery does not guarantee future inbox placement.

Unsubscribe, then repeat the original import

Unsubscribe one test address using the message interface and another using the link in the message body. Check the state in the platform and any connected contact system. Reimport the original list and inspect a new campaign preview: establish whether either address would become eligible again and what explicit action would be required. Check the scope of suppression across lists, brands and automations. Keep marketing preferences separate from the handling of operational messages and ask the responsible reviewer to define the intended policy.

Full trial checklist and CSV worksheet

A trial you can repeat

Use a small list of consenting colleagues and addresses your team controls. Give every platform the same audience, campaign and expected recipient list. Keep a copy of the message, its headers and the resulting subscriber export. Your trial should explain who receives a message and why, including when someone should stop receiving it. A polished email template is only one part of that workflow.

Google describes authentication and subscription requirements for sending to personal Gmail accounts, with additional requirements for bulk senders. Our audience, billing and migration exercises are editorial trial tasks. They do not establish deliverability or legal compliance for a product. Google: email sender guidelines. Source reviewed 2026-10-03. The trial questions are editorial guidance, not additional measured criteria.

Narrow it down

Each of these lists the Email marketing vendors that meet one condition, with the source for each, and appears only where at least 8 of them meet it.

This category, criterion by criterion

How this market does on each criterion, with its own share and how it compares with the rest.

Head-to-head comparisons

Each comparison lists only the criteria where the two differ, with the source for every one. All comparisons.

Every result links its source on the vendor page. A grey segment means we could not measure it, not that it is missing. See how we score.