WarmupSleuth improves the sender reputation of your inbox, without any required work from your end. Simply connect your inbox and let us do the magic. Now in Beta.
Free for the first two Beta months. Then our pricing applies.
We all know the hassle — hundreds of emails end up in spam every month and your prospects never see your offer. WarmupSleuth is here to fix it. Geeks or non-coders, everyone can improve their sender reputation.
Integrations for Google Workspace and Microsoft 365 inboxes, with SMTP/IMAP fallback for custom inboxes.
Separate scores for Google, Microsoft and Other inboxes. Spot divergence early — before one bucket tanks while others stay green.
Our warmup emails use simple text formatting — no redundant links, attachments or spam triggers. Not templates that ESPs catch in seconds.
Pick a ramp curve, set business hours and topics. The schedule respects your timezone and eases off on weekends.
Hosted in the EU with privacy built in. Right-to-export and right-to-delete out of the box — no add-ons, no surprises.
While we bring our network to full performance, we're in open Beta — planned for about two months. When it ends, you can go paid or leave the warmup environment.
Connect a mailbox, optionally drop in a template, and the warmup loop runs the rest. Your sender reputation accumulates over time.
Gmail, Microsoft 365, or any SMTP+IMAP provider. OAuth or app password — your call. Domain detection pre-fills the host and port.
The standard ramp covers most accounts. Draw your own curve if you've already started warming elsewhere.
Your reputation starts building within ~24 hours. The donut and per-ESP grid populate from there, and drift gets flagged early.
Connect a mailbox in two minutes and watch reputation build. Free for the first two Beta months.
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