EmailQA vs SMTP Labs
EmailQA
emailqa.liveSMTP Labs
smtp.devSide by side
| Figure | EmailQA | SMTP Labs |
|---|---|---|
| Price from | $20/mo | $7/mo |
| Free plan | Yes | Yes |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | Yes |
| API | Yes | Yes |
| Plans published | 3 | 3 |
| Spec score · Email Testing Software | 8.4 (#7) | 8.4 (#8) |
| Integrations | The integrations page lists Mailchimp, Klaviyo, HubSpot, Constant Contact, ActiveCampaign, Campaign Monitor, ConvertKit, AWeber, Drip, and Figma. | The maker documents CI use with GitHub Actions, Jenkins, GitLab CI, and CircleCI, using standard SMTP and the REST API. |
| Purpose | EmailQA lets teams preview HTML emails and collect feedback through comments pinned to specific locations. | SMTP Labs is an email testing service that receives test email over SMTP and lets users inspect it through the web UI, IMAP, POP3, or API. |
| Retention | The security page lists screenshot retention of 7 days on Free, 90 days on Pro, and 365 days on Business. | Message retention depends on the plan and can be up to 90 days, with shorter per-message expiry available. |
| Support | Pro includes priority support. | The terms state the company has no support or maintenance obligation except as may be included in a paid subscription plan. |
Plans
In their own words
EmailQA
EmailQA helps teams review HTML emails by generating previews and collecting comments pinned to specific locations. Users can paste HTML or upload an.html file to create a shareable preview link. Emails render in Gmail, Outlook, and Apple Mail on real devices, with screenshots in light and dark modes. Reviewers can view and comment through a shared link without making an account. Teams can upload newer versions while retaining earlier feedback and comparing changes. Listed integrations include Mailchimp, Klaviyo, HubSpot, Constant Contact, ActiveCampaign, Campaign Monitor, ConvertKit, AWeber, Drip, and Figma. Email service provider connections use OAuth and read-only access; EmailQA says it reads templates without changing campaigns or accessing subscriber data. Slack can notify teams about comments, and users can reply in Slack threads. The REST API supports HTML uploads, real-device render requests, screenshots, and render-result webhooks; it is included in Business. The free plan is for individuals, Pro for teams and professionals, and Business for agencies and automation. Free is free; paid plans start at $20 a month. A 14-day trial is available.
SMTP Labs
SMTP Labs is an email testing service that receives test messages over SMTP and lets you inspect them on the web, through IMAP or POP3, or via an API. Messages remain in a sandbox and cannot reach external recipients. Inspection includes HTML and plain text, headers, MIME structure, raw source, and attachments. SPF, DKIM, and DMARC checks appear in the interface and API, while a deliverability audit reviews sender configuration, HTML, links, and content patterns associated with spam filters. The REST API covers domains, accounts, mailboxes, messages, and tokens; server-sent events can push new messages. SMTP, IMAP, and POP3 work without a vendor SDK. The Lite plan is free at free with one domain, 50 accounts, and seven-day retention. Pro costs $7 a month, and Max costs $20 a month, with longer retention and expanded domains or accounts. Email and account data are primarily processed in the United States.