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Hostinger Cloud Email (Phase 1) Webmail ↗

Bounce & Suppression List Manager

Automated RFC 3464 Delivery Status Notification (DSN) interceptor protecting Hostinger Cloud and Mailcow IP reputations.

Total Suppressed
2
Active suppression list
Hard Bounces (5xx)
1
Permanent failures (User unknown)
Soft Bounces (4xx)
1
Temporary (Quota exceeded)
MTA Feed Engine
RFC 3464 Active
Zero-bounce queue protection

Suppressed Email Addresses (2)

Automated suppression prevents downstream relay strikes
Recipient Email Type Status Code Diagnostic Reason Reporting MTA Date Suppressed Action
invalid.user@nonexistent-domain.xyz Hard (Permanent) 5.1.1 550 5.1.1 User unknown or mailbox does not exist mx1.hostinger.com 2026-10-02 07:53:29 1790927609UTCC
overquota.client@externalmail.com Soft (Temporary) 4.2.2 452 4.2.2 Mailbox full / storage quota exceeded smtp.google.com 2026-10-03 07:53:29 1791014009UTCC