Compare email marketing

Zinn® Campaigns vs SendGrid

SendGrid is known first as a developer's email API, with Marketing Campaigns built on top. Here is how it compares for people who write newsletters rather than code.

What you get with Zinn® Campaigns that others charge extra for, or do not offer

Each of these is switched on in the product today. Nothing here is a roadmap item.

One draft, every subscriber's own language

Set a language on a contact and they receive the campaign translated from the same draft. No copies per audience, no translation bill.

AI writing on every plan

From a one-line brief, the AI writer drafts two subject lines, a preheader and the body. It is not held back for a higher tier.

Sent at each contact's best hour

Smart send time delivers to each contact when they usually open, and an A/B subject test sends the winner to the rest.

Your brand, read from your website

The brand kit takes your logo, colours and font from your own site, so the first campaign already looks like you.

A check before every send

The pre-send check reads the campaign before it goes and lists what to fix, what to review and what is only for information.

SPF, DKIM and DMARC written for you

When we host your DNS, we write the sending records for your domain after you confirm. No copying records between tabs.

Already included with your hosting

Every Mainstream hosting plan includes 500 contacts and 2,000 emails a month, with no second bill.

24/7 enterprise-grade support, at no extra charge

Every customer on every plan reaches our expert team around the clock. Enterprise-grade support is part of the product, never a paid upgrade or a higher tier.

What the comparison shows

SendGrid Marketing Campaigns is built for volume: Basic stores up to 100,000 contacts and sends up to 300,000 emails, and Advanced includes a dedicated IP. Its free option is a 60-day trial. Zinn® Campaigns is designed for marketers rather than developers. It writes the campaign with AI, translates it per contact and checks it before it goes.

FeatureZinn® CampaignsSendGrid
Free or included plan500 contacts and 2,000 emails a month, included with every Mainstream hosting plan60-day free trial: 100 contacts, 100 emails a day1
Paid plans start at$4.99 a month for 1,000 contactsBasic from $15 a month; Advanced from $60, with a dedicated IP1
A/B testingA/B subject line test, the winner sent to the restA/B testing1
Automated flowsWelcome and drip flows on a list join, plus a yearly date. No store-triggered flows yetAutomation1
Sign-up formsHosted forms and an embed snippet, with double opt-inSign-up forms: 1 on the trial, 5 on Basic1

SendGrid's cells are what SendGrid's own pricing page showed on November 12, 2026, in US dollars. Plans change, so check their page before you decide.

Where their figures come from

  1. Twilio SendGrid Marketing Campaigns pricing

Why marketers pick Zinn® Campaigns over an email API

An AI writer, not just a sender

SendGrid moves email superbly. Zinn® Campaigns also drafts the campaign from a brief, with two subject lines ready to test.

A permanent allowance, not a trial

The SendGrid trial lasts 60 days. The 500 contacts and 2,000 emails a month included with Mainstream hosting do not expire.

Keep SendGrid as your sender if you like

Zinn® Campaigns can send through any SMTP account, SendGrid's included. Write in our editor and deliver through the infrastructure you already pay for.

Where SendGrid is the stronger choice

For transactional email at scale, SendGrid's Email API and deliverability tooling are proven at very large volume, and Advanced includes a dedicated IP. Teams sending hundreds of thousands of marketing emails a month, with developers on hand, will find its volume pricing hard to beat.

Where we fit

Small and mid-sized teams who want to write, test and send a campaign without touching an API, in the same dashboard as their hosting, and with a check before every send.

Moving campaigns off SendGrid

  1. Export your Marketing Campaigns contacts

    Export the contact list from SendGrid's Marketing Campaigns as CSV.

  2. Decide how mail is delivered

    Keep SendGrid as an SMTP sender, or connect another provider. Either way, your From domain is verified first.

  3. Rewrite with AI, then test

    Paste your last campaign's brief into the AI writer, compare the two subject lines with an A/B test, and send.

SendGrid comparison questions

Is Zinn® Campaigns an alternative to SendGrid Marketing Campaigns?

For marketers, yes: AI writing, per-contact translation and a pre-send check, with enterprise-grade help at any hour included. SendGrid suits developers who send very large volumes and want a dedicated IP on Advanced.

Can Zinn® Campaigns send through my SendGrid account?

Yes. Connect SendGrid's SMTP details as your sender and campaigns leave through your SendGrid account.

Does Zinn® Campaigns include a dedicated IP?

No plan includes one today. SendGrid's Advanced plan does. If a dedicated IP is a requirement now, SendGrid has the edge.

Is Zinn® Campaigns a transactional email API?

No. Zinn® Campaigns is for marketing campaigns to opted-in contacts. For password resets and receipts, an API such as SendGrid is the right tool.

What happens after the free period?

SendGrid's trial ends after 60 days. Our hosting allowance does not end: it stays part of every Mainstream hosting plan.

Is support included, or is it a paid tier?

Included. Every Zinn® Campaigns customer gets 24/7 enterprise-grade expert support at no extra charge, on every plan, from the team that runs the platform.

Already hosting with Zinn Digital®?

Every Mainstream hosting plan already includes 500 contacts and 2,000 emails a month of Zinn® Campaigns. See what it does before you pay anyone else for a newsletter.

See how Zinn® Campaigns works