Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
redhat.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-26 18:58:32 UTC · ↺ Refresh
MX Hostnames
- us-smtp-inbound-2.mimecast.com
- us-smtp-inbound-1.mimecast.com
MX Priorities
- us-smtp-inbound-2.mimecast.com: 10
- us-smtp-inbound-1.mimecast.com: 10
A / AAAA Records
- 52.200.142.250 ↩ ec2-52-200-142-250.compute-1.amazonaws.com
- 34.235.198.240 ↩ ec2-34-235-198-240.compute-1.amazonaws.com
Mail Server IPs
- 170.10.128.141 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.132.221 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.128.242 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.132.242 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.132.141 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.128.221 ↩ us-smtp-inbound-2.mimecast.com
SOA Record
Raw SOA
dns1.p01.nsone.net hostmaster.nsone.net 1684376201 200 7200 1209600 3600
Primary NS (mname)
dns1.p01.nsone.net
Admin Email (rname)
hostmaster@nsone.net
Serial
1684376201
Refresh
200s
Retry
7200s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
dns3.p01.nsone.net
dns4.p01.nsone.net
dns1.p02.nsone.net
dns2.p02.nsone.net
dns1.p01.nsone.net
dns2.p01.nsone.net
SPF Record
✓ Soft Fail (~all)
v=spf1 redirect=73t7ezjz._spf._d.mim.ec
📊 DNS lookups: 1/10
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 3 found
google._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: google
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
24 records- wework-site-verification=EABEURRXyO1yBZcn
- atlassian-domain-verification=fHiTv781WbOHgzl6U1McyXa9JUSSO5B0ECvgSZzJ9+b4q8wv0Tf4iI75xdcyoC00
- amazonses:ablaZDaC37yeQUcZAZjbfqRELxucC+8pBdvhFEpTSlY=
- miro-verification=0bc02d4257d450b9f9034363a58f88b4b904dc22
- MS=ms44845140
- docker-verification=b3c48bbc-05f6-40b8-8391-b5ad3366c6ec
- _w3mdwen0nsght830g06ehmrsdmvuilf
- google-site-verification=TaSjV4JOe2XfmL_vHFKJHkPk8sjgoLkuuTTWezDO0Pw
- slack-domain-verification=dPrnI9sLvqvAbQUwzvFsPXSPEU1PLODdgGxLhEUr
- SPFv=spf1 redirect=73t7ezjz._spf._d.mim.ec
- apple-domain-verification=xaB3GAa9xxzrpoS4
- status-page-domain-verification=dfx5rbys1ts5
- adobe-idp-site-verification=10154eb7d4abe67e9e45621e46476febbec28a97a4610d7c043c42c667aa18d4
- docusign=cfd355fc-11f9-4eaf-8ecf-64433ef46173
- MS=ms88428189
- google-site-verification=fkn6chapCdYNWIcpsgH0K6mkR0yo7ldeIRC7EH23yoo
- docusign=c6aa79da-fde1-4b7e-8874-28eeb223ca63
- segment-site-verification=Kk3pC9UBfhioQzibTvTIhT4TFVwP4niP
- pendo-domain-verification=01424ad4-8f69-4456-90ff-5f544ada6cec
- cursor-domain-verification-xts7mh=BCrLupJRjleUhfxmNA4CUlgaE
- Dynatrace-site-verification=1782cd51-ac66-4966-acdc-061c80f794f5__t1aa4l3qdsf475891sv2711t80
- status-page-domain-verification=hyls0f05cd87
- Dynatrace-site-verification=6d28213f-f653-42df-8f09-a7ae69f50e6a__dk5hkah3juetfgj11au5isjmig
- google-site-verification=rl_wq5rq_W7A7OSyK08d8Ta_Hf6AKP5tqtdlo4iGTvs
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