Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
thecarleton.ca
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 10:43:49 UTC · ↺ Refresh
MX Hostnames
- ASPMX.L.GOOGLE.COM
- ASPMX2.GOOGLEMAIL.COM
- ALT1.ASPMX.L.GOOGLE.COM
- ALT2.ASPMX.L.GOOGLE.COM
- ASPMX3.GOOGLEMAIL.COM
MX Priorities
- aspmx3.googlemail.com: 4
- alt2.aspmx.l.google.com: 2
- alt1.aspmx.l.google.com: 1
- aspmx.l.google.com: 0
- aspmx2.googlemail.com: 3
A / AAAA Records
- 104.154.74.242 ↩ 242.74.154.104.bc.googleusercontent.com
Mail Server IPs
- 172.253.116.27 ↩ dj-in-f27.1e100.net
- 2a00:1450:400b:c02::1b ↩ dj-in-f27.1e100.net
- 2a00:1450:400b:c02::1a ↩ dj-in-f26.1e100.net
- 108.177.123.27 ↩ lcscld-in-f27.1e100.net
- 2800:3f0:4003:c0f::1b (no PTR)
- 142.251.16.27 ↩ bl-in-f27.1e100.net
- 2607:f8b0:4004:c17::1a ↩ bl-in-f26.1e100.net
SOA Record
Raw SOA
ns1.netfirms.com dnsadmin.netfirms.com 2011042819 10800 3600 604800 3600
Primary NS (mname)
ns1.netfirms.com
Admin Email (rname)
dnsadmin@netfirms.com
Serial
2011042819
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns2.netfirms.com
ns1.netfirms.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:spf.mandrillapp.com ?all
📊 DNS lookups: 1/10
? Neutral (?all) — no enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 1 found
dkim._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: dkim
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 include:spf.mandrillapp.com ?all
Full email verification for thecarleton.ca
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits