Multi-provider send routing, bounce management, and reputation protection — built in.
Route sends across Gmail, AWS SES, and SendGrid. Distribute volume to protect any single sender's reputation.
Sleek respects sending limits per provider per hour. No burst sends that trigger spam filters or account suspensions.
Hard and soft bounces are caught and suppressed instantly. Your list stays healthy without any manual cleanup.
One-click unsubscribe links are injected automatically. Opt-outs are synced globally so you never accidentally re-contact someone.