January 21st, 2025

New Feature - SISR system and Private IP Blocks 🚀

Protect your email reputation and keep your campaigns landing in inboxes with Instantly’s advanced IP rotation system!

SISR system (Server & IP Sharding and Rotation System) continuously monitors IP performance, rotating high-reputation IPs and removing underperforming ones. Any flagged IPs are immediately replaced, ensuring campaigns continue without disruption.

Our SISR system automatically assigns dedicated/private server/IP blocks to customers on a LightSpeed Outreach plan and customers with larger volumes or multiple paid workspaces.

Why Private IP Blocks matter for email deliverability?

  • Private IP Blocks ensure optimal performance and prevent deliverability issues caused by shared IP reputations.

  • No need to purchase private servers, IPs, or proxies. We handle it all seamlessly as you scale.

  • Unlike tools with static IPs, we continuously rotate proxy IPs to protect your sender reputation. If an IP gets flagged, it’s instantly replaced without interrupting your campaigns.

  • We actively monitor IP blacklists and remove underperforming IPs before they impact your delivery rates.

Check if the SISR System has been enabled for your account here.