is a privacy / alias email domain.
passinbox.com belongs to Proton Pass 别名, an email alias / privacy relay service. Addresses are relays for a real inbox, not disposable mailboxes.
Data refreshed daily from live DNS.
| Priority | Mail server | IP addresses |
|---|---|---|
| 10 | mx1.simplelogin.co | 176.119.200.136, 185.205.70.136 |
| 20 | mx2.simplelogin.co | 176.119.200.136, 185.205.70.136 |
v=spf1 include:simplelogin.co ~allv=DMARC1; p=quarantine; pct=100; adkim=s; aspf=sIs passinbox.com a disposable email domain?
passinbox.com belongs to Proton Pass 别名, an email alias / privacy relay service. Addresses are relays for a real inbox, not disposable mailboxes.
Should I block emails from passinbox.com?
Probably not. passinbox.com shows no disposable-email indicators. Check the risk signals above for anything unusual.
One GET request tells you if any email address is disposable, an alias, or undeliverable — before it hits your database.