MXLIST.NET - duo-prod.sandbox.google.com
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duo-prod.sandbox.google.com checked at 2025-11-30T16:54:34.433Z 279ms 96/96/96 100% R:15 allDone:true timedOut:false duo-prod.sandbox.google.com
| MX | gmr-smtp-in.l.google.com | ||||||
| A | 2607:f8b0:4023:c0b::e 🇺🇸 Google | ||||||
| PTR | dd-in-f14.1e100.net | ||||||
| A | 142.250.141.14🇺🇸 Google | ||||||
| PTR | dd-in-f14.1e100.net | ||||||
| MX | alt1.gmr-smtp-in.l.google.com | ||||||
| A | 2607:f8b0:4023:100f::e 🇺🇸 Google | ||||||
| PTR | yudfwra-in-f14.1e100.net | ||||||
| A | 192.178.220.14🇺🇸 Google | ||||||
| PTR | yudfwra-in-f14.1e100.net | ||||||
| MX | alt2.gmr-smtp-in.l.google.com | ||||||
| A | 2607:f8b0:4023:1015::e 🇺🇸 Google | ||||||
| PTR | yudfwta-in-f14.1e100.net | ||||||
| A | 172.253.135.14🇺🇸 Google | ||||||
| PTR | yudfwta-in-f14.1e100.net | ||||||
| MX | alt3.gmr-smtp-in.l.google.com | ||||||
| A | 2607:f8b0:4023:3001::e 🇺🇸 Google | ||||||
| PTR | yulnkec-in-f14.1e100.net | ||||||
| A | 172.217.74.14🇺🇸 Google | ||||||
| PTR | yulnkec-in-f14.1e100.net | ||||||
| MX | alt4.gmr-smtp-in.l.google.com | ||||||
| A | 2607:f8b0:4003:c30::e 🇺🇸 Google | ||||||
| PTR | yutulis-in-f14.1e100.net | ||||||
| A | 74.125.27.14🇺🇸 Google | ||||||
| PTR | yutulis-in-f14.1e100.net | ||||||
| A | 2607:f8b0:4004:c09::451 🇺🇸 Google | ||||||
| A | 172.253.122.81🇺🇸 Google | ||||||
| PTR | bh-in-f81.1e100.net | ||||||
sandbox.google.com
| MX | gmr-smtp-in.l.google.com | ||||||
| MX | alt1.gmr-smtp-in.l.google.com | ||||||
| MX | alt2.gmr-smtp-in.l.google.com | ||||||
| MX | alt3.gmr-smtp-in.l.google.com | ||||||
| MX | alt4.gmr-smtp-in.l.google.com | ||||||
| A | 2607:f8b0:4004:c0b::451 🇺🇸 Google | ||||||
| A | 142.250.31.81🇺🇸 Google | ||||||
AI analysis
duo-prod.sandbox.google.com points to two IPs: 2607:f8b0:4004:c09::451 and 172.253.122.81.
Other host names, for instance photos4.sandbox.google.com, bh-in-f81.1e100.net, mail.sandbox.google.com, test0-maps-streetview-import.sandbox.google.com and fonts.sandbox.google.com share IP numbers with duo-prod.sandbox.google.com.
duo-prod.sandbox.google.com is handled by five mail servers: gmr-smtp-in.l.google.com, alt1.gmr-smtp-in.l.google.com, alt2.gmr-smtp-in.l.google.com, alt3.gmr-smtp-in.l.google.com and alt4.gmr-smtp-in.l.google.com.
duo-prod.sandbox.google.com shares mail servers with other domains at least in part, for instance gmb-prototypes.appspot.com, cookie-guard-erdee.ey.r.appspot.com, number.search.247onlinegames.appspot.com, googlemachine.net--showsiteinf.appspot.com--www.showsiteinf.appspot.com and india.24x7med1.appspot.com.
These mail servers are often used together with aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and alt4.aspmx.l.google.com.
Two IPs per host name:
gmr-smtp-in.l.google.com points to: 2607:f8b0:4023:c0b::e and 142.250.141.14
alt1.gmr-smtp-in.l.google.com points to: 2607:f8b0:4023:100f::e and 192.178.220.14
alt2.gmr-smtp-in.l.google.com points to: 2607:f8b0:4023:1015::e and 172.253.135.14
alt3.gmr-smtp-in.l.google.com points to: 2607:f8b0:4023:3001::e and 172.217.74.14
alt4.gmr-smtp-in.l.google.com points to: 2607:f8b0:4003:c30::e and 74.125.27.14
Pattern: left IDs ascend by 9 (12, 21, 30, 39, 48); each pair of targets ascend by 9 (15/18, 24/27, 33/36, 42/45, 51/54)