Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
mainsl.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-02 21:23:37 UTC · ↺ Refresh
MX Hostnames
- mainsl-com.mail.protection.outlook.com
MX Priorities
- mainsl-com.mail.protection.outlook.com: 0
A / AAAA Records
- 141.193.213.11 (no PTR)
- 141.193.213.10 (no PTR)
Mail Server IPs
- 52.101.41.180 ↩ mail-byapr04cu00204.inbound.protection.outlook.com
- 52.101.41.54 ↩ mail-sj2pr05cu00506.inbound.protection.outlook.com
- 52.101.11.3 ↩ mail-sn1pr0501cu00103.inbound.protection.outlook.com
- 52.101.10.8 ↩ mail-bn1pr04cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c922:: ↩ mail-bl0pr03cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c803:: ↩ mail-bn1pr21cu00200.inbound.protection.outlook.com
- 2a01:111:f403:f901:: ↩ mail-mn2pr04cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c92c::1 ↩ mail-dm6pr03cu00401.inbound.protection.outlook.com
SOA Record
Raw SOA
ns41.worldnic.com namehost.worldnic.com 126032519 10800 3600 604800 3600
Primary NS (mname)
ns41.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
126032519
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns42.worldnic.com
ns41.worldnic.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:72.11.31.99 ip4:208.64.43.193 include:spf.protection.outlook.com include:mainsl-com.spf.smtp25.com include:spf.constantcontact.com include:sl.m2.sendlayer.net -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; pct=100;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
8 records- 2Xjq6sqNlEfRmvhUWAggLQ==
- MS=182E33D32C30083AD6F82A2373F4DF0624F404E8
- v48otlg5k0ad79301qjc66ng9o
- SPFv=spf1 ip4:72.11.31.99 ip4:208.64.43.193 include:spf.protection.outlook.com include:mainsl-com.spf.smtp25.com include:spf.constantcontact.com include:sl.m2.sendlayer.net -all
- apple-domain-verification=8jHE455ILh7rqodg
- google-site-verification=ADMJE6nO1puThnVI30chaDqnkxesSqZ5jXxRRkBnSVw
- ru42p6fc7pgv9e329nghs0fc46
- b2b1lj4crdqahvaju9u5q8q78c
Full email verification for mainsl.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits