Flodesk: beautiful emails — but do they hit inbox? Seed test them.

Flodesk exists because most ESPs shipped ugly templates. Creators, designers and small-brand owners flocked to it for one reason: the emails look like they were designed by a human with taste rather than assembled from clip art in 2007. The trade-off is that Flodesk's default aesthetic — big hero images, overlay text, pastel backgrounds, generous whitespace — is also the aesthetic Gmail uses to identify Promotions.

That is not a bug in Flodesk or a mistake on your part. A gorgeous magazine-style email is a promotional email by nature. Gmail is right to put it in Promotions. The problem is that you, the creator, might want Primary-tab placement, and you have no way to know whether any given send clears Primary unless you actually look at a Gmail inbox. That is what seeds do.

The image-heavy template risk, concretely

Gmail's tab classifier uses a lot of signals, but a handful correlate strongly with Promotions placement for Flodesk-style designs:

• Image-to-text ratio. A hero image with 20 words under it scores as promotional. A hero image with 400 words under it does not.
• CTA button density. Three big buttons above the fold is marketing; one inline text link is a conversation.
• Outbound-link diversity. Links to a shop domain, a course platform, an Instagram handle, a TikTok and an affiliate partner in one email lights up Promotions signals.
• Subject-line patterns. "Sale ends tonight", emojis, percent-off phrasing: all promotional.
• Unsubscribe footer style. Promotional footers (long legalese, social icons, address block) look promotional. That is inevitable for commercial senders.

Most Flodesk templates hit four of those five signals by default. Promotions placement is the expected outcome. Seeds let you confirm exactly which issues stay in Promotions (fine), which slip into Spam (not fine), and which rare issues graduate to Primary.

Adding seeds to a Flodesk audience

Flodesk's audience model is a single list with segments. Seeds become members of a dedicated segment you create for them. The steps:

1. Go to Audience → Segments → New segment. Name it "Seeds" and save.
2. Open Audience → Subscribers → Add subscribers. Paste or import your seed addresses. Assign them to the Seeds segment.
3. Confirm opt-in if Flodesk requires it in your region. Most seed addresses will forward the confirm email to an inbox you control.
4. For each workflow or campaign, include the Seeds segment as a recipient. Or, better: when sending a one-off broadcast, use Flodesk's "Send test" feature and target the Seeds segment as the test group.

The pre-send seed test workflow

Because Flodesk emails are visually produced, the pre-send test has an extra purpose: catch the two or three issues where the design itself tipped Promotions into Spam. The loop:

1. Build the email in Flodesk.
2. Send a test to the Seeds segment. Wait a few minutes.
3. Check placement across Gmail (Primary / Promotions / Spam), Outlook, Yahoo, Mail.ru, ProtonMail.
4. If Gmail is Promotions and the rest are Inbox, that is a normal and acceptable outcome for a design-led newsletter.
5. If Gmail is Spam or multiple providers are Junk, go back to the design. Most often the fix is to add more text above the hero image or to remove one or two outbound links.

example flodesk send — my-brand.flodesk.com
                 gmail       outlook  yahoo   mail.ru  proton
  spring drop    Promo       Inbox    Inbox   Inbox    Inbox  <- ok
  flash sale     Spam        Inbox    Junk    Inbox    Inbox  <- fix
  journal 07     Primary     Inbox    Inbox   Inbox    Inbox  <- text-heavy won

Rebalancing image-to-text without killing the design

When seeds tell you an issue hit Spam, resist the urge to strip out images entirely. You chose Flodesk for a reason. The useful rebalancing levers, in order of yield:

Add a meaty text block between hero and first button

Three or four lines of real prose is enough to change the classifier's read. Put the text directly below the hero, before any CTA. Use real sentences, not just subheadings.

Split one huge image into two smaller ones with caption text

A single 800-pixel-tall banner is read as a billboard. Two 400-pixel sections with a caption beneath each is read as a composed email. Same visual, different signal.

Prune outbound links

Pick the one primary CTA and demote the rest to a small footer links block or remove them entirely. Less link diversity = less promotional signal.

Calm down the subject line

Drop the emoji, drop the all-caps, drop the urgency word. If you want urgency, state it in the first line of the preheader rather than the subject.

Realistic expectations for Flodesk seed results

Most Flodesk senders should plan for Gmail Promotions as the steady state. Promotions is not failure; people buy from Promotions all day. The failure mode is Spam — and seeds make Spam visible before your real list absorbs the hit. If you follow the rebalancing checklist above, you should see Promotions (Gmail) + Inbox (everywhere else) consistently, which is what a modern ecommerce newsletter looks like when it is working.

Frequently asked questions