Built for high-volume senders. Postlever plans every send, reads every response and acts on what it learns.
Import 100M+ contacts. Every open, click, conversion and opt-out is kept.
Brands, workflows and creatives set up in minutes, with AI writing the creative.
Postlever builds the plan: who receives which offer, through which ESP, in which hour. Then it runs it.
Deliverability reads response codes, deferrals and complaints as they land, and your rules decide what happens next.
Creatives, offers and workflows run as experiments, and the winners are the ones that earn the most per thousand sent, not the ones with the most opens. With analytics on every signal across every ESP and ISP, every decision is an informed one.
Every contact is checked at send time against suppressions, opt-outs and bounces, and each check is logged in the Advertiser's OPTIZMO account against your mailer.
Built for enterprise volume from day one. If you're still waiting on your email platform, you're on the wrong one.
Postlever is our favorite platform for managing large-scale email operations. It handles massive contact lists and complex sending rules without breaking a sweat; all while maintaining assigned delivery speeds. The built-in tools for dynamic offer insertion and automated workflows make it incredibly easy to launch and scale campaigns with precision. It's a robust solution that delivers results, no matter the size or complexity of the send.
Suppression is part of the platform, not a bolt-on. Every email is checked against global, brand, offer, and domain-level suppression lists in real time before sending. Opt-outs propagate instantly. You never need to download or upload a suppression list again.
No. Postlever connects to your existing ESPs: AWS SES, SendGrid, PowerMTA, Mailgun, KumoMTA, GreenArrow, and more. You can use one or many simultaneously, and Postlever will load-balance across them.
Postlever reads what the ESP and the ISP send back on every message (accept, defer, refuse, rate limit) and turns it into a rate it can act on. You set the thresholds: a deferral rate on one ISP, a hard-bounce rate on a brand, a complaint rate on the account. When one is breached the platform acts without waiting for you, slowing the send, moving volume to another ESP, holding the rest for the next window, or stopping the deployment outright. Every action is recorded as an incident in Deliverability, with the rule that fired, the rate that triggered it and how long it ran, so you can see what it did and why.
Warmup is automated: Postlever ramps daily volume on a schedule and tracks how each ISP is responding, with seed accounts at every major ISP reporting where mail is actually landing. Reputation guard rails watch bounce and complaint rates as the send runs and pause a brand, a workflow or the whole send before a spike becomes a blocklisting.
Set up a brand, connect your ESP credentials and import your contacts, and you can be sending the same day.
Yes. Postlever is automated by default but fully controllable. You can preview and adjust tomorrow's deployment plan, pause any brand or workflow, override offer selection, and trigger manual kill switches at any time. Every automated decision is visible and reversible.
Yes. Postlever has a complete REST API with full programmatic access to every feature: contacts, brands, offers, deployments, analytics, and webhooks. Integrate Postlever into your existing systems or build custom workflows on top of it.
Set it up once. Every night after that, Postlever plans and runs the send while you sleep.
No card required · Free during early access · See pricing