Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
arco365.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-28 13:08:55 UTC · ↺ Refresh
MX Hostnames
- arco365-com.mail.protection.outlook.com
MX Priorities
- arco365-com.mail.protection.outlook.com: 0
A / AAAA Records
- 198.202.211.1 (no PTR)
- 2620:cb:2000::1 (no PTR)
Mail Server IPs
- 52.101.11.17 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com
- 52.101.9.14 ↩ mail-bl0pr03cu00206.inbound.protection.outlook.com
- 52.101.41.21 ↩ mail-sj2pr05cu00305.inbound.protection.outlook.com
- 52.101.40.4 ↩ mail-cy5pr03cu00204.inbound.protection.outlook.com
- 2a01:111:f403:f802::2 ↩ mail-sj2pr05cu00202.inbound.protection.outlook.com
- 2a01:111:f403:c902::14 ↩ mail-byapr04cu00204.inbound.protection.outlook.com
- 2a01:111:f403:c946:: ↩ mail-ch5pr02cu00200.inbound.protection.outlook.com
- 2a01:111:f403:f90d::1 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com
SOA Record
Raw SOA
roxy.ns.cloudflare.com dns.cloudflare.com 2399524768 10000 2400 604800 1800
Primary NS (mname)
roxy.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399524768
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
theo.ns.cloudflare.com
roxy.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:amazonses.com include:zcsend.net include:one.zoho.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1;p=quarantine;pct=25;rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
⚠ Policy applies to 25% of failing messages only
DKIM Selectors
✓ 3 found
mail._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: mail
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
14 records- pymthxqr82krbx4nb61yxjwclvvt07cq
- sendinblue-code:ff8f76c33409690f87828c6184ca7c0b
- SPFv=spf1 include:spf.protection.outlook.com include:amazonses.com include:zcsend.net include:one.zoho.com -all
- 4307zh75sr5dhlc5bx497c2zx4bg3v1t
- 4H7-R4F-C6M
- 93x3nv3d7xh4b13jqpm066j94cp6d84z
- MS=6E3F897E130479F424E02DD33F7A1A347238265D
- MS=ms70089063
- MS=ms77141410
- _mcs9zdygzzrq4n45cecp8k2zmpk2zc1
- _zkfo4wc03csu35sgdkppiqsc0y6f5y8
- arco365as.azurewebsites.net
- google-site-verification=TdmPCRId8fprpL7nAeI4zFt45Oxv5y060MiQ56H4pZo
- ms-domain-verification=ff25cf82-e839-48a7-8d01-ba0bbae3299d
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