5 tools that complement Brevo (without replacing it)

Jean RubensUpdated July 202612 min read

Switching email platforms is expensive, disruptive, and rarely the real fix. Most teams reach for a migration when the actual problem is a specific missing capability, and the sending engine is fine. Brevo sends reliably, has a solid drag-and-drop editor, and runs automations. The gaps are specific and well understood.

The better move is to keep Brevo and add a focused tool where it stops. Each tool below does one job Brevo does not do natively, integrates cleanly, and mostly has a free tier so you can start small. None of them sends your campaigns, so none of them competes with Brevo. They surround it.

Why complement Brevo instead of replacing it?

Because the gaps are narrow and the switching cost is not. In 2025, 48% of senders named staying out of spam as their biggest deliverability challenge (Sinch Mailgun, State of Email Deliverability 2025, 2025). Brevo will not verify a list, run seed tests or read your DMARC reports for you, but a dedicated tool for each will, without touching how you send.

Brevo does the sending job well: campaigns, a native editor with responsive templates, automations and basic reporting. What it does not do natively is diagnostics and hygiene. So treat Brevo as the sending engine, and add a dedicated instrument around each gap.

This is also why a migration usually disappoints: it swaps the engine you already know for a new one, without solving the hygiene or diagnostics gap that caused the pain. If you are weighing separation options, our guide to Brevo sub-accounts and their alternatives covers when to add versus when to split.

1. List validation: ZeroBounce

Start here, because a list rots faster than most teams expect. At least 23% of an email list decays within a single year as people change jobs and abandon addresses (ZeroBounce, Email List Decay Report 2026, 2026). Brevo has no native bulk verification, so mailing an uncleaned list quietly feeds bounces and spam-trap hits into your reputation.

ZeroBounce verifies a list in bulk or in real time, removing invalid, spam-trap and risky addresses before you send. It publishes a dedicated Brevo integration: you validate the list, then export the clean version back into Brevo. It never sends campaigns, so it sits alongside your ESP by design. A free tier gives 100 verification credits a month to test the workflow.

2. Inbox-placement testing: GlockApps

You can't fix what you can't see, and almost nobody looks. Only 13% of senders use inbox-placement testing, even though 48% call staying out of spam their top challenge (Sinch Mailgun, State of Email Deliverability 2025, 2025). Brevo shows sending-side stats, but it does not run seed tests to tell you where your mail actually lands.

GlockApps sends a campaign to a seed list across Gmail, Yahoo, Outlook and others, then reports whether each landed in inbox, spam or was missing, alongside a spam-score and blocklist check. Its free plan covers a couple of spam tests plus DMARC monitoring. For an all-in-one alternative that also verifies lists, MailerCheck combines placement, validation and DMARC in one dashboard.

3. DMARC monitoring: EasyDMARC

Authentication is now a hard requirement, not a nicety. Since February 2024, Google and Yahoo require bulk senders to authenticate with SPF and DKIM and publish a DMARC policy, or mail starts skipping the inbox (Google, Email sender guidelines, 2024). Brevo helps you set up the DNS records, but it doesn't aggregate or monitor the DMARC reports those records generate.

EasyDMARC turns raw DMARC reports into a readable dashboard, shows every source sending as your domain, and guides you safely from p=none to enforcement. Its free plan covers one domain and 1,000 messages a month. dmarcian, run by a co-author of the DMARC spec, does the same job and offers free record checkers. Either keeps you compliant and flags spoofing before it hurts placement.

DMARC monitoring is the authentication half of deliverability. The reputation half, complaints and hygiene, is covered in our pillar guide to protecting your sender reputation on a shared account.

4. Email design: Stripo

Design matters more than ever because of where mail is read. Apple's ecosystem, led by the iPhone, accounts for roughly 65% of all email opens (Litmus, Email Client Market Share, 2026). A template that breaks on a phone fails most of your audience. Brevo does have a capable native editor here, so this tool is an upgrade rather than a gap-filler.

Stripo is a drag-and-drop builder with a large template library and reusable modules, aimed at teams that want a brand-consistent design system and faster production. It sits in Brevo's own App Store with a one-click push, so you design in Stripo and send in Brevo. BEEFree is a strong no-code alternative that exports clean, responsive HTML. Both have free tiers with limited monthly exports.

5. Governance and frequency capping: Sendgate

The last gap appears once more than one team shares the account. For 43% of people, the main reason they unsubscribe is that a sender emails them too often (ZeroBounce, Into the Inbox 2026, 2026). Brevo's frequency cap can help, but it is an Enterprise-plan feature, and marketing emails sent through Automations are not capped automatically (Brevo, 2024).

Sendgate sits on top of your existing Brevo account and governs what Brevo leaves ungoverned: it shows the real number of emails each contact receives across every team, enforces a shared per-contact cap that includes automations, and compartmentalizes lists so no one blasts the whole base by accident. It never sends for you; Brevo still does that.

This gap is where a shared account needs the most help. For the mechanics, see the frequency capping paradox, the five multi-team Brevo mistakes that wreck deliverability, and the full Brevo multi-team governance guide.

How the five tools fit together

Each tool maps to one gap, and none overlaps with Brevo's sending role. The point is not to run all five on day one, but to add the one that matches your current pain. Most have a free tier, so you can trial the fit before paying.

Free tiers and pricing change often; confirm current terms on each vendor's site before relying on a specific plan.

Frequently asked questions

Jean Rubens

Co-founder, Sendgate

Jean is a co-founder of Sendgate. He writes about multi-team email governance: send visibility, list compartmentalization and deliverability across shared sending accounts.