Works with the tools you already use.
NeverSpam is a template-based email warmup service that plugs into the cold-email platform you already run. Paste your campaign template once, and we warm the exact subject, body, and links against 100K+ real seed inboxes — not a robot conversation about pizza recipes.
Pick your cold-email tool.
Instantly.ai
Paste your Instantly templates. We warm exactly what you send — same subject, same body, same links. Sender tags flow back into Instantly.
Smartlead
Template-based warmup for Smartlead campaigns. Active/Standby/Bad tags written back via the Smartlead API after every inbox-placement probe.
lemlist
Layer NeverSpam on top of (or in place of) lemwarm. Real seed inboxes warming your real lemlist sequences — not a generic robot conversation.
Woodpecker.co
Paste your Woodpecker sequence into NeverSpam. We warm the exact copy you send, including if-campaign branches and follow-ups.
Mailshake
Template-based warmup for Mailshake campaigns. Built for high-volume SaaS sales teams pushing hundreds of sends per sender per day.
Apollo.io
Apollo Sequences deserve real warmup. Paste your sequence, we warm it against 100K+ seed inboxes — not just the sender, the actual content.
Sender-only warmup doesn't transfer.
Most warmup tools — including the ones built into Instantly, Smartlead, lemlist, and Apollo — warm the sender by exchanging generic conversational emails with other senders in a pool. The reputation that builds is on small, friendly threads. The moment you switch to your actual cold outreach template with a link and a CTA, filters re-evaluate from scratch.
Template-based warmup is different. We warm the exact campaign you're about to launch, against 100K+ real seed inboxes across Gmail, Workspace, Outlook, and Microsoft 365. Reputation accrues to your content, not a fake conversation.
Pick your tool. Paste your template. Hit inbox.
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