CF1758584928768-tsm20250922102932

WWW.RTSAK.COM - omni.isr.ist.utl.pt

Search for IP or hostnames:

omni.isr.ist.utl.pt checked at 2025-09-22T23:48:48.753Z 972ms 76/76/76 100% R:16

omni.isr.ist.utl.pt

MXsmtp1.ist.utl.pt
A2001:690:2100:1::15 🇵🇹 FCCN - Fundacao para a Computacao Cientifica Nacional
PTRsmtp1.tecnico.ulisboa.pt
A193.136.128.21🇵🇹 FCCN - Fundacao para a Computacao Cientifica Nacional
PTRsmtp1.tecnico.ulisboa.pt
MXsmtp2.ist.utl.pt
A2001:690:2100:1::16 🇵🇹 FCCN - Fundacao para a Computacao Cientifica Nacional
PTRsmtp2.tecnico.ulisboa.pt
A193.136.128.22🇵🇹 FCCN - Fundacao para a Computacao Cientifica Nacional
PTRsmtp2.tecnico.ulisboa.pt
MXsmtp.ist.utl.pt
A2001:690:2100:1::25 🇵🇹 FCCN - Fundacao para a Computacao Cientifica Nacional
PTRsmtp.tecnico.ulisboa.pt
A193.136.128.20🇵🇹 FCCN - Fundacao para a Computacao Cientifica Nacional
PTRsmtp.tecnico.ulisboa.pt
A2001:690:2100:4::8647:6731 🇵🇹 FCCN - Fundacao para a Computacao Cientifica Nacional
PTRomni.isr.tecnico.ulisboa.pt
A193.136.160.15🇵🇹 FCCN - Fundacao para a Computacao Cientifica Nacional
PTRomni.isr.ist.utl.pt

isr.ist.utl.pt

MXsmtp1.ist.utl.pt
MXsmtp2.ist.utl.pt
MXsmtp.ist.utl.pt
A2001:690:2139:209b:f816:3eff:fe2a:f8f8 🇵🇹 FCCN - Fundacao para a Computacao Cientifica Nacional
A192.92.147.35🇵🇹 FCCN - Fundacao para a Computacao Cientifica Nacional

PTR for

Starts with same word

Starts similarily

AI analysis

omni.isr.ist.utl.pt points to two IP numbers: 2001:690:2100:4::8647:6731 and 193.136.160.15.

Other host names, for instance omni.isr.tecnico.ulisboa.pt, share IP numbers with omni.isr.ist.utl.pt.

omni.isr.ist.utl.pt is handled by three mail servers: smtp1.ist.utl.pt, smtp2.ist.utl.pt and smtp.ist.utl.pt.

omni.isr.ist.utl.pt shares some mail servers with other domains, including cfn.ist.utl.pt, soma.isr.ist.utl.pt, civil.ist.utl.pt, mar.ist.utl.pt and math.ist.utl.pt.

These mail servers are commonly used alongside the mail servers smtp.cfn.ist.utl.pt and smtp.ipfn.ist.utl.pt.

Host names with two IP numbers:

smtp1.ist.utl.pt points to: 2001:690:2100:1::15 and 193.136.128.21.

smtp2.ist.utl.pt points to: 2001:690:2100:1::16 and 193.136.128.22.

smtp.ist.utl.pt points to: 2001:690:2100:1::25 and 193.136.128.20.

Perform reverse DNS lookup as well as normal forward DNS. Check Autonomous System Numbers (ASNs) and BGP connections between Internet Service Providers.
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