Custom solutions · Email broadcasting

Email broadcasting and bulk email that reaches the inbox.

Sending one email to fifty thousand people is easy; our email broadcasting gets it into the inbox, not the spam folder. That is the hard part, since Gmail and Yahoo have enforced strict rules for bulk senders since 2024. We set it up on the platform that suits you, or build a custom email broadcaster on a reliable sending service, with authentication, unsubscribe handling, list hygiene and monitoring done properly. Our team has run campaigns in Klaviyo, Mailchimp and Zoho, and builds custom senders when those don’t fit.

200+ clients served 500+ projects delivered

Free email review

Tell us your list size and we will plan your broadcasts within 2 workdays.

Three fields and you are done. We review your list and past sends, then send a broadcast plan for the next month.

  • List health and segments reviewed
  • A one-month broadcast calendar
  • Subject line and content direction
Chat on WhatsApp Prefer to talk first? Send us your store URL on WhatsApp.

Your PDF report comes by email. If you want to discuss going ahead after reading it, we’ll set up a video meeting. We use your details only for this audit.

Fit

Who it’s for

  • Businesses with large lists whose newsletters and offers land in spam or the Promotions tab and go unread
  • Teams paying a high per-contact price for a platform when they only need broadcasts
  • Companies that need email sent from their own system: a portal, a CRM, a booking tool or an internal app
  • Senders who received a warning or block from Gmail, Yahoo or their email provider

Not the right fit for sending to bought or scraped lists. It breaks Gmail’s and Yahoo’s rules, anti-spam laws and every sending service’s terms, and it ruins the domain for everyone in your company.

Problems we fix

Why bulk email ends up in spam.

  • 01

    Authentication missing

    No SPF, DKIM or DMARC, or a From domain that doesn’t align with them, so mailbox providers can’t trust the mail.

  • 02

    No one-click unsubscribe

    Gmail requires it for bulk marketing mail; without it, people press “report spam” instead.

  • 03

    Old, unclean lists

    Bounced addresses, years-old contacts and spam traps drag down everything you send.

  • 04

    Spam complaints too high

    Gmail asks senders to keep reported spam below 0.3%. Untargeted blasts go over it fast.

  • 05

    Sudden volume

    A new domain or IP sending tens of thousands of emails on day one looks like a spammer.

  • 06

    Nobody watching

    No Postmaster Tools, no bounce handling, no reports, so problems surface only when sales drop.

In 1:10 · animated

Before we change anything, we check five things.

A short animated walk-through of the first checks in our audit. No sound needed: everything is on screen, and the transcript is below.

What we check first before bulk email, an animated explainer of 1:10 with on-screen captions and controls to pause.

Read the transcript
  1. What we check first before bulk email Five checks that keep campaigns out of spam.
  2. 1. Is the domain authenticated? Gmail and Yahoo require bulk senders to set up SPF, DKIM and DMARC, with the From domain aligned. (Example domain. Source: Google email sender guidelines.)
  3. 2. Is there one-click unsubscribe? Gmail requires one-click unsubscribe on bulk marketing mail. Without it, people press “report spam” instead. (Example campaign. Source: Google email sender guidelines.)
  4. 3. Is the spam rate safe? Google asks bulk senders to keep the spam rate in Postmaster Tools below 0.3%, and recommends staying under 0.1%. (Example account. Thresholds: Google email sender guidelines.)
  5. 4. How clean is the list? Bounced addresses, years-old contacts and spam traps drag down everything you send. (Example list.)
  6. 5. Is volume raised gradually? A new domain sending tens of thousands of emails on day one looks like a spammer. Volume should grow week by week. (Example warm-up plan.)
  7. Then we fix them, in that order. Want this checked on your list? The free growth audit covers all five, in writing.

Our approach

Email broadcasting built for deliverability.

We start from the rules mailbox providers publish. Google’s email sender guidelines say that senders of more than 5,000 messages a day to Gmail accounts must set up SPF, DKIM and DMARC, align the From domain with SPF or DKIM, support one-click unsubscribe for marketing mail with a visible unsubscribe link, and keep spam rates reported in Postmaster Tools below 0.3%. Yahoo’s sender best practices set similar requirements. We check your domain against all of them first.

Then the platform decision. For online stores, a marketing platform such as Klaviyo is usually right, because flows and segments matter more than raw sending. For newsletters, member communications or very large lists, a simpler broadcaster can cost far less. We’ve worked with Klaviyo, Mailchimp and Zoho, and choose based on your list size, budget and what your team will use every week.

When no platform fits, we build a custom email broadcaster. It sends through an established sending service such as Amazon SES, reads contacts and segments from your own systems, schedules sends, personalises content, processes bounces and complaints automatically, handles unsubscribes with the one-click unsubscribe standard (RFC 8058) and reports opens, clicks and revenue. Our developer-led team builds it with AI-assisted development, and reviews and tests every change before it ships.

List hygiene is the quiet half of deliverability. We remove hard bounces, suppress complainers, confirm new sign-ups where it helps, and move contacts who haven’t opened in a long time to a re-engagement series before removing them. Smaller, engaged lists reach the inbox more often than big, tired ones.

Warm-up and monitoring come last. New domains or dedicated IPs start with the most engaged contacts and grow volume over weeks. We set up Google Postmaster Tools and DMARC reports, watch bounce and complaint rates per send, and keep a record so a problem can be traced to the email that caused it.

And the law. Commercial email needs a truthful sender and subject, a physical address and a working opt-out under rules such as the US CAN-SPAM rule (16 CFR Part 316); consent rules are stricter in other markets. We build those requirements into the templates and sign-up forms, not just the policy page.

Email broadcasting rules for bulk senders from Gmail: SPF, DKIM, DMARC, alignment, one-click unsubscribe and spam rate below 0.3%
What Gmail requires from bulk senders.

How we use AI here

Where AI helps (and where it doesn’t).

  • Subject line and copy variants

    AI drafts variants for testing; a person picks and edits them so claims stay accurate and on brand.

  • Spotting problems early

    Scripts compare bounce and complaint rates per send with the usual range and alert us when something looks wrong.

Where it doesn’t help: buying trust. No AI tool can make mail from an unauthenticated domain or an unconsented list land in the inbox. The fundamentals do that.

What’s included

Deliverables, not promises.

  • Deliverability audit

    SPF, DKIM, DMARC, alignment, unsubscribe headers, list health and reputation checked.

  • Platform choice or custom build

    The right platform for your use, or a custom broadcaster on a sending service.

  • Authentication setup

    SPF, DKIM and DMARC published and aligned, with DMARC reports.

  • One-click unsubscribe

    List-Unsubscribe headers and a visible link, processed automatically.

  • List clean-up

    Bounces and complainers suppressed, inactive contacts re-engaged or removed.

  • Warm-up plan

    Volume increased step by step, starting with engaged contacts.

  • Monitoring and reporting

    Postmaster Tools, bounce and complaint rates, opens, clicks and revenue.

A custom email broadcaster: contacts from your systems, a sending service, bounce and complaint handling, unsubscribes and reporting
How a custom broadcaster fits together.

How we run it

Four steps, in this order.

Fix the foundations, then send, then scale. Typical timing: the audit within 2 workdays, setup in about a week, warm-up over 2 to 4 weeks, then monitoring.

  1. Step 1

    Audit

    Domain authentication, list health and current results checked.

  2. Step 2

    Set up or build

    Platform configured or custom broadcaster built and tested.

  3. Step 3

    Warm up

    Engaged contacts first, volume increased gradually.

  4. Step 4

    Monitor

    Deliverability and results watched per send, list kept clean.

Four steps of our email broadcasting setup: audit, set up or build, warm up, monitor
Fix the foundations, then send, then scale.

Pricing

Starting prices, in US dollars.

The audit is free. Paid work starts at these prices, and your exact cost is fixed in writing before any work begins.

  • Free audit

    Free no obligation

    Tell us your list size and we will plan your broadcasts within 2 workdays.

    Get my free audit
  • Fixed scope

    Broadcast setup

    From $300 one-off

    Templates, segments and the first month of broadcasts ready to send.

    • Branded email templates
    • Segments built
    • First 4 broadcasts written
    Start with the free audit
  • Monthly broadcasts

    From $250 monthly

    Broadcasts written, sent and reported each month.

    • 4 broadcasts per month
    • Subject line tests
    • A monthly report
    Ask about this option

All prices are starting prices in US dollars. Custom work beyond these options is quoted after the audit.

By industry

What changes for your category.

  • Jewelry

    Jewelry brands send fewer, richer emails around gifting dates. Authentication and clean lists make sure those few count.

  • Fashion & apparel

    Fashion brands send often. List hygiene and engagement-based sending stop frequent campaigns from hurting deliverability.

  • Luxury & high-ticket

    High-ticket stores email small, valuable lists. Every inbox placement matters, so monitoring per send pays off.

Sources

The documentation we work from.

Platform rules change. These are the official pages we check the work against, so you can check it too.

FAQ

Straight answers.

Can’t find yours? Ask on WhatsApp or by email and we’ll answer it.

What is email broadcasting?

Sending one email to many people at once, such as a newsletter, an offer or an announcement, as opposed to automated flows triggered by each person’s actions. It’s also called bulk email.

Why do our bulk emails go to spam?

Usually a mix of missing or misaligned authentication (SPF, DKIM, DMARC), no one-click unsubscribe, old or unclean lists and high spam complaint rates. We check each one and fix them in order.

What are Gmail’s rules for bulk senders?

Senders of more than 5,000 messages a day to Gmail must set up SPF, DKIM and DMARC, align the From domain, support one-click unsubscribe for marketing mail and keep reported spam below 0.3%.

Should we build our own email broadcaster?

Only if platforms don’t fit: very large lists where per-contact pricing hurts, sending from your own systems, or special reporting. Otherwise an existing platform is simpler.

Which platforms do you work with?

We’ve worked with Klaviyo, Mailchimp and Zoho, and build custom broadcasters on sending services such as Amazon SES. We recommend based on your use, not on a partnership.

Can you clean our list?

Yes: bounces and complainers suppressed, inactive contacts re-engaged or removed, and sign-up forms fixed so new contacts are real and consenting.

How long does warm-up take?

Usually several weeks for a new domain or dedicated IP, starting with the most engaged contacts and raising volume as bounce and complaint rates stay low.

Can we email people who bought from us but never subscribed?

It depends on the law where they live and how you collected their address. We check your consent wording and set up the safest route for each market.

Related guides

Read before you decide.

All Buying guides guides

Free growth audit

Find out what’s holding your store back.

Tell us about your store. We’ll review your tracking, campaigns and SEO and send you a written audit with the top fixes, ranked by impact.

  • Written audit as a PDF, delivered within 2 workdays (see a sample)
  • A video meeting to go through it, if you want to discuss next steps
  • Free and no obligation
  • Read-only access or screenshots are enough

Free audit
Chat on WhatsApp