Distribute your email sending across multiple IPs to protect sender reputation and maximize inbox placement for every campaign.
CloudMails automatically rotates your sending across a pool of warmed IPs, ensuring no single IP carries all your reputation risk.
Start with 3-5 warmed dedicated IPs. Each IP maintains its own sender reputation with mailbox providers like Gmail, Outlook, and Yahoo.
Set rotation frequency (per-email, per-batch, or time-based), volume distribution, and domain pairing. CloudMails learns optimal patterns.
If an IP performance drops, it's automatically removed from rotation, decontaminating the pool while others continue sending.
Poor-performing IPs are warmed again in isolation and gradually reintroduced to rotation once reputation recovers.
Understanding the algorithms behind effective inbox rotation.
CloudMails assigns each IP a reputation score (0-100). When selecting the next IP for sending, the system weights probability toward higher-reputation IPs while ensuring even volume distribution. This prevents new IPs from being starved of volume.
Gmail tolerates 0.5% hard bounces before flagging. Yahoo is stricter at 0.8%. Outlook allows 1%. CloudMails monitors bounce rates per IP per ISP and rotates away before thresholds are hit—not after.
Each sending domain develops reputation with specific ISPs. CloudMails tracks domain-ISP pairs and ensures optimal domain-IP combinations. A domain with Gmail reputation shouldn't be rotated to a fresh IP.
IPs with higher engagement rates (opens, replies) receive more volume allocation. This positive feedback loop compounds reputation faster. IPs with declining engagement get volume reduced while reputation rebuilds.
Purpose-built features for managing multi-IP email infrastructure at scale.
Each email in a campaign rotates to a different IP, distributing reputation risk at the most granular level.
Real-time IP reputation scoring with automatic health alerts. Know immediately when an IP needs attention.
Link specific sending domains to specific IPs for consistent authentication and reputation building.
Underperforming IPs automatically removed from rotation. Campaign continues unaffected with healthy IPs.
Automatically balance sending volume across all IPs to maintain equal reputation building.
Set custom rotation schedules, volume limits, and domain assignments per campaign or segment.
Get started with CloudMails inbox rotation and protect your sender reputation at scale.
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