Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
iitb.ac.in
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-19 16:15:46 UTC · ↺ Refresh
MX Hostnames
- fmlr2.iitb.ac.in
- fmlr4.iitb.ac.in
- fmlr3.iitb.ac.in
- fmlr1.iitb.ac.in
MX Priorities
- fmlr2.iitb.ac.in: 10
- fmlr3.iitb.ac.in: 10
- fmlr1.iitb.ac.in: 10
- fmlr4.iitb.ac.in: 10
A / AAAA Records
- 103.21.124.133 ↩ www.iitb.ac.in
Mail Server IPs
- 103.21.127.126 ↩ fmlr2.iitb.ac.in
- 103.21.125.128 ↩ fmlr3.iitb.ac.in
- 103.21.125.126 ↩ fmlr1.iitb.ac.in
- 103.21.126.127 ↩ fmlr4.iitb.ac.in
SOA Record
Raw SOA
dns1.iitb.ac.in postmaster.iitb.ac.in 2013071001 16384 2048 1048576 3960
Primary NS (mname)
dns1.iitb.ac.in
Admin Email (rname)
postmaster@iitb.ac.in
Serial
2013071001
Refresh
16384s
Retry
2048s
Expire
1048576s
Minimum TTL
3960s
Nameservers (NS)
dns1.iitb.ac.in
dns2.iitb.ac.in
dns3.iitb.ac.in
SPF Record
✓ Strict (-all)
v=spf1 include:_spf.iitb.ac.in -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected],mailto:[email protected],mailto:[email protected]; fo=1; pct=100
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
DKIM Selectors
✓ 1 found
mail._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
2 records- SPFv=spf1 include:_spf.iitb.ac.in -all
- digiCert-domain-verification=srv3w1n78kqqd8ky1d3bmyzth4zsjfb3
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