Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
citytech.cuny.edu
Yes
✓ Yes
Proofpoint
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 04:40:31 UTC · ↺ Refresh
MX Hostnames
- mxa-00030001.gslb.pphosted.com
- ppsa.citytech.cuny.edu
- mxb-00030001.gslb.pphosted.com
- ppsm.citytech.cuny.edu
MX Priorities
- ppsm.citytech.cuny.edu: 20
- ppsa.citytech.cuny.edu: 20
- mxa-00030001.gslb.pphosted.com: 10
- mxb-00030001.gslb.pphosted.com: 10
A / AAAA Records
- 146.111.135.4 ↩ www.citytech.cuny.edu
Mail Server IPs
- 146.111.135.92 ↩ ppsm.citytech.cuny.edu
- 146.111.135.93 ↩ ppsa.citytech.cuny.edu
- 66.159.240.160 ↩ mx0a-00030001.pphosted.com
SOA Record
Raw SOA
acme.ucc.cuny.edu hostmaster.acme.ucc.cuny.edu 200806373 10800 3600 2419200 3600
Primary NS (mname)
acme.ucc.cuny.edu
Admin Email (rname)
hostmaster@acme.ucc.cuny.edu
Serial
200806373
Refresh
10800s
Retry
3600s
Expire
2419200s
Minimum TTL
3600s
Nameservers (NS)
lavinia.cis.cuny.edu
acme.ucc.cuny.edu
harlem.cis.cuny.edu
ext-ns1.columbia.edu
hudson.cis.cuny.edu
ns10.customer.level3.net
ns15.customer.level3.net
SPF Record
✓ Soft Fail (~all)
v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; fo=1; rua=mailto:[email protected]; ruf=mailto:[email protected];
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 392 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
2 records- MS=6AC905BDB306F96A46BC6CB687B8877F7695FC1D
- SPFv=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com ~all
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