Emails landing in Promotions or spam folder
First, a limit worth knowing about: WarmySender cannot tell you where your campaign emails landed. We have no view inside your recipients' mailboxes, so nothing in the app reports a Promotions-tab or spam-folder placement for a campaign — you will normally find out from a reply, or by sending yourself a test. (The inbox and spam rates on your Warmup pages are a different thing: they come from warmup mail sent to our own peer network, which is the only mail we can follow all the way in. Even there we only tell inbox from spam, never which Gmail tab.)
If your campaign emails land in Promotions or spam: 1) Check DNS records — SPF, DKIM, and DMARC must all be configured correctly. Use a tool like MXToolbox to verify. 2) Reduce HTML and images — plain-text-style emails with minimal formatting have higher inbox placement. The hint under the email editor tells you which side you are on: 'Plain look' or 'Styled'. If it says Styled on a first cold email, select all and click Clear formatting. See /documentation/format-your-emails. 3) Avoid spam trigger words — 'free', 'guarantee', 'act now', 'limited time' in subject lines. 4) Warm up your mailbox first — run warmup for at least 2-3 weeks before starting campaigns. 5) Keep your volume low initially (20-30 emails/day) and increase gradually. 6) Personalize every email — use merge tags so each email is unique. 7) Set up a custom tracking domain to avoid shared tracking domain reputation issues. 8) Monitor your warmup Health Score — if it drops below 60, pause campaigns and let warmup recover your reputation. 9) Verify your list with the Email Verifier before sending — invalid addresses drive bounces, and a high bounce rate is itself a signal that pushes you toward the spam folder.