Dataweaz

umd.edu

Summary

Registrar
—
Status
Created on
July 31, 1985
Expires on
July 31, 2027
Name servers
ns.ums.edu, ns2.umd.edu, ns1.umd.edu
Mail servers
mx2.umd.iphmx.com, mx1.umd.iphmx.com
DMARC
Monitoring
SPF
Soft
DKIM
6 keys found
Website
See the website

Spoofing protection (DMARC)

Monitoring

E-mails spoofing this domain are only reported, not blocked.

DMARC tells mail servers what to do with an e-mail that claims to come from umd.edu but fails SPF and DKIM checks.

Policy
Monitoring
Subdomain policy
Monitoring
Messages covered
100%
DKIM alignment
Relaxed
SPF alignment
Relaxed
Aggregate reports
[email protected], [email protected]
Failure reports
—

Record

v=DMARC1; p=none; pct=100; rua=mailto:[email protected],mailto:[email protected]

Authorized senders (SPF)

Soft

E-mails sent by any other server are accepted but flagged as suspicious.

SPF lists the servers allowed to send e-mails for umd.edu.

RuleValueResult
exists%{ir}.%{v}._spf.umd_spf.aws.umd.eduAllowed
include_spf.salesforce.comAllowed
exists%{ir}.%{v}.x._spf.umd_spf.aws.umd.eduSuspicious
ip468.232.142.226Allowed
ip468.232.131.46Allowed
ip4216.71.149.111Allowed
ip4216.71.149.190Allowed
ip468.232.143.84Allowed
ip468.232.137.73Allowed
ip4216.71.140.161Allowed
ip4216.71.140.163Allowed
ip4128.8.162.133Allowed
ip4128.8.15.34Allowed
ip4128.8.13.14Allowed
ip4128.8.162.94Allowed
ip4209.164.1.194Allowed
ip454.144.73.133Allowed
ip454.172.225.123Allowed
ip4168.245.25.116Allowed
include_spf.umd.eduAllowed
include_spf.google.comAllowed
ac.spf.service-now.comAllowed
all—Suspicious

Top-level DNS lookups: 6 of 10 allowed

Record

v=spf1 exists:%{ir}.%{v}._spf.umd_spf.aws.umd.edu include:_spf.salesforce.com ~exists:%{ir}.%{v}.x._spf.umd_spf.aws.umd.edu ip4:68.232.142.226 ip4:68.232.131.46 ip4:216.71.149.111 ip4:216.71.149.190 ip4:68.232.143.84 ip4:68.232.137.73 ip4:216.71.140.161 ip4:216.71.140.163 ip4:128.8.162.133 ip4:128.8.15.34 ip4:128.8.13.14 ip4:128.8.162.94 ip4:209.164.1.194 ip4:54.144.73.133 ip4:54.172.225.123 ip4:168.245.25.116 include:_spf.umd.edu include:_spf.google.com a:c.spf.service-now.com ~all

E-mail signing (DKIM)

DKIM keys published by umd.edu under the most common selectors. Other keys may exist under selectors specific to each sending service.

SelectorLikely serviceKeyStatus
googleGoogle WorkspaceRSA 2048 bitsActive
k2MailchimpRSA 2048 bitsActive
k3MailchimpRSA 2048 bitsActive
s1SendGridRSA 2048 bitsActive
s2SendGridRSA 1024 bits · shortActive
mail—RSA 1024 bits · shortActive

RSA keys shorter than 2048 bits, called short keys, are discouraged: they are easier to break.

MX, SPF, DKIM and DMARC: the e-mail records

Four DNS records make a domain's e-mail work. MX says where e-mails sent to umd.edu arrive; SPF, DKIM and DMARC let mail servers check that an e-mail claiming to come from umd.edu was really sent by this domain, which protects it against spoofing.

MX

An MX (Mail Exchanger) record designates a server that receives e-mails sent to the domain. When someone writes to an @umd.edu address, their mail server queries the DNS for the domain's MX records, then delivers the message to the server they point to.

Example record

umd.edu  MX  10 mx1.umd.edu.
umd.edu  MX  20 mx2.umd.edu.

What the record contains

10, 20
Priority: the server with the lowest number is tried first. Servers with equal priority share the load.
mx1.umd.edu.
Host name of the mail server. It must point to an A or AAAA record: an IP address or an alias (CNAME) is not allowed here.
0 .
An MX "0 .", called a null MX, declares that the domain accepts no e-mail: sending servers give up at once instead of retrying.

Declaring at least two servers with different priorities avoids losing e-mails during an outage: sending servers retry for several days and fall back on the backup server. Without any MX, they try to deliver directly to the IP address of the domain.

SPF

SPF (Sender Policy Framework) is a TXT record listing the servers allowed to send e-mails on behalf of the domain. The receiving server checks that the sender is on this list. The final "all" rule says what to do with other servers: reject them (-all), flag their e-mails as suspicious (~all) or make no decision (?all).

Example record

umd.edu  TXT  "v=spf1 mx include:_spf.google.com ip4:192.0.2.10 -all"

What the record contains

v=spf1
Identifies the record as an SPF policy. It must come first.
ip4, ip6
Allows a specific IP address or an address range, for example ip4:192.0.2.0/24.
a, mx
Allows the addresses of the domain itself (A record) or those of its mail servers (MX).
include
Allows the servers of another domain, usually a sending service: include:_spf.google.com for Google Workspace.
-all, ~all
Final rule, applied to every other server. Its qualifier decides what happens to them: - rejects them, ~ flags their e-mails as suspicious, ? makes no decision, + accepts them (avoid it).

A domain must publish only one SPF record, and its evaluation cannot exceed 10 DNS lookups (include, a, mx, exists, redirect). Beyond that, mail servers treat it as invalid.

DKIM

DKIM (DomainKeys Identified Mail) signs every outgoing e-mail with a private key. The matching public key is published in a TXT record at selector._domainkey.umd.edu, so the recipient can check that the message really comes from the domain and was not altered on the way. The selector is chosen by each sending service and cannot be guessed: Dataweaz checks the most common ones (Google Workspace, Microsoft 365, Mailchimp, SendGrid…), so a key published under another selector may exist without appearing here.

Example record

google._domainkey.umd.edu  TXT  "v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA…"

What the record contains

v=DKIM1
Protocol version. Optional but recommended, in which case it must come first.
k
Key algorithm: rsa, the most common, or ed25519.
p
Public key, base64-encoded. An empty value means the key has been revoked.
t
Flags: y marks a key in testing, whose failures must not be penalized; s forbids its use for subdomains.

Each sending service publishes its key under its own selector (google, selector1, k1…), which allows several keys and seamless rotation. A 2048-bit RSA key is recommended today.

DMARC

DMARC (Domain-based Message Authentication, Reporting and Conformance) builds on SPF and DKIM. Published on _dmarc.umd.edu, it tells mail servers what to do with an e-mail that fails these checks (let it through, send it to spam or reject it) and where to send reports.

Example record

_dmarc.umd.edu  TXT  "v=DMARC1; p=quarantine; rua=mailto:[email protected]; adkim=r; aspf=r"

What the record contains

v=DMARC1
Identifies the record as a DMARC policy. It must come first.
p
Policy applied to e-mails that fail the checks: none (monitoring only), quarantine (spam folder) or reject.
sp
Subdomain policy. Without it, subdomains follow the domain's policy.
rua
Address that receives daily aggregate reports about e-mails sent on behalf of the domain, whether they pass the checks or not.
ruf
Address that receives detailed failure reports, message by message. Few providers still send them.
pct
Percentage of e-mails subject to the policy, for a gradual rollout. 100 by default.
adkim, aspf
DKIM and SPF alignment: r (relaxed, a subdomain of the same domain is enough) or s (strict, the domain must be identical).

To roll out DMARC without blocking legitimate e-mails, start with p=none and an rua address, analyze the reports to find every service sending on behalf of the domain, then move to quarantine and finally to reject.

DNS records of umd.edu

IP addresses (A and AAAA)

An A record maps the domain name to an IPv4 address: the address of the server that browsers contact to display the website. The AAAA record does the same for an IPv6 address. A domain can have several of them to spread visits across several servers.

TypeIP address
A94.247.142.1

Name servers (NS)

NS records designate the authoritative DNS servers of the domain: they answer every question about its other records (A, MX, TXT…). They are provided by the registrar, the hosting provider or a dedicated DNS service, and several servers are declared so that the domain keeps working if one of them fails.

ServerIP address
ns.ums.edu131.118.254.1
ns2.umd.edu128.8.76.3
ns1.umd.edu128.8.74.3

Mail servers (MX)

MX records point to the servers that receive e-mails sent to the domain, that is to @umd.edu addresses. Each server has a priority: the one with the lowest number is tried first, the others take over if it fails. Without an MX record, the domain cannot receive e-mails.

PriorityServerIP address
20mx2.umd.iphmx.com216.71.149.111
20mx1.umd.iphmx.com68.232.143.84

TXT records

TXT records hold free text. They are used to prove ownership of the domain to online services (Google, Microsoft, Facebook…) and to publish e-mail security rules: SPF on the domain itself, DMARC on _dmarc.umd.edu.

NameContent
umd.eduadobe-idp-site-verification=0afdc0ecfe602686ab99e86db79056a241a666affe647a893924b794fbef5191
umd.eduonetrust-domain-verification=a9c54d2106ba4d8f96921e94348534c7
umd.edufacebook-domain-verification=lo5wiknocnhv9rxmhcau0qu15gcjfi
umd.eduatlassian-sending-domain-verification=50a6f41d-d743-40ab-ba5e-e6d14af52f1b
umd.edugoogle-site-verification=e9un135MdekFdfk_VicDDfCP9wi1jb8Wmkmk1DF6OfE
umd.eduZOOM_verify_6gxpRSmmeH1pxxUo5Higlu
umd.edugoogle-site-verification=SVI8jDKaHI6P96SE07flUYUA2OCriIIOWiX-3a0RnEQ
umd.edue2ma-verification=x1ffb
umd.edue2ma-verification=04bgb
umd.edue2ma-verification=aaqab
umd.edue2ma-verification=xcqab
umd.edue2ma-verification=6yzbb
umd.edubrevo-code:d71d84f4848e813d4acac38670ad3409
umd.edue2ma-verification=sujfb
umd.edue2ma-verification=tq1cb
umd.edue2ma-verification=xqlbb
umd.edue2ma-verification=eeefb
umd.edue2ma-verification=my1ab
umd.edue2ma-verification=oc1cb
umd.edubrevo-code:d3c2d63793f4dd20304af345c67a8be4
umd.edue2ma-verification=ycqab
umd.edue2ma-verification=yxpfb
umd.edue2ma-verification=btfcb
umd.edue2ma-verification=s6ybb
umd.edue2ma-verification=pgteb
umd.edue2ma-verification=n5reb
umd.edue2ma-verification=l81ab
umd.edue2ma-verification=kwmbb
umd.edue2ma-verification=wcqab
umd.edue2ma-verification=0cqab
umd.edue2ma-verification=e0gfb
umd.edue2ma-verification=k5reb
umd.edue2ma-verification=ecqab
umd.edue2ma-verification=m5reb
umd.edue2ma-verification=vlseb
umd.edue2ma-verification=sdzcb
umd.edue2ma-verification=ifycb
umd.edue2ma-verification=99pab
umd.edue2ma-verification=l5reb
umd.edue2ma-verification=rxycb
umd.edue2ma-verification=f7pab
umd.edue2ma-verification=nabgb
umd.edue2ma-verification=u9xfb
umd.edue2ma-verification=ydveb
umd.edue2ma-verification=oabgb
umd.edue2ma-verification=6yzbb""
umd.edudell-technologies-domain-verification=umd.edu_6b285755-75ed-4037-bb55-7910d997b8ba_1734885372
umd.eduatlassian-sending-domain-verification=ec03eaf2-7ed2-4d03-8333-820cad9e8a04
umd.edujamf-site-verification=q_evM9Go1nzKC2ruEDnURA
umd.eduatlassian-domain-verification=jsp21SwhRd0VlqqwwG604raLVFkXj122oxaP875ixca1SyYNs2r4V0pW3PGacjvs
umd.edulogmein-verification-code=t7A67XAYgXcWS1d2nVXr7Dl6K
umd.edubrevo-code:d7c5ea407d5638e935306c41b6cf0c69
umd.educursor-domain-verification-8sk7wz=1jFulrG3zid0VtQWYhZk8wrU4
umd.eduperplexity-ai-domain-verification-hnmv8k=AYYgnLHsTOBvmlPYklcBZ2fiR
umd.eduanthropic-domain-verification-2kekyx=Izdedg0KzNFDVDh88YGHCIyHI
umd.edu4D3F845C731B0955B3B0563F393D12E2
umd.eduFADAF9FB5B9EE2272ED1638D143C1745
umd.eduSFMC-ChwpRSjm7UAXQ3aO2a4TE_nHOhXyfCVMMj25jtqC
umd.edu00D70000000IZPh=1TBUY0000000001
umd.edulovable_verification=e690e0f7ff798a43aa2301c1783d8342908b52bf3cbdb9889dd51115f8585219
umd.edugoogle-site-verification=NDLPx5E7ayLh2kxzv6If6mrg3cQTXMlPNfoTjRY4KUk
umd.eduasv=08dc4bff5ca1c57c4066d547cb2ede34
umd.eduti2UA/gVAiO7gzONg0rdrMb6EOqcvvkfFTEbLj+egRTjB9H/rf0lfpBkf0NdaGjf9b4qrQq0xJcErwtMit+5lQ==
umd.edugoogle-site-verification=2ZymRq4dY9_nbGLh9HhTm3Z5oBDEKi2yHyj9buDZmqc
umd.edu5a5def2dc4b8766dcbc4d2da3349c68a1f60d470238c9ad2c43757470df5b14e
umd.eduadobe-idp-site-verification=40a1e9b4-50fb-4c92-9399-1e76c80cdf87
umd.eduDynatrace-site-verification=3b9984ff-fa43-4c6c-a412-a04c9311d963__39f5p55j2q7g71po5ii8mk4374
umd.eduatlassian-domain-verification=hCFSb4vDaH3FZG2/DNZjaj2dLt7Yo8BAte5sP586KyW4DvPynitQEt8x7c0RvMhF
umd.edugoogle-site-verification=As2VzGueK-l938gHU7jCCGo0sAWM0eM7BulPwDSC0y0
umd.eduv=spf1 exists:%{ir}.%{v}._spf.umd_spf.aws.umd.edu include:_spf.salesforce.com ~exists:%{ir}.%{v}.x._spf.umd_spf.aws.umd.edu ip4:68.232.142.226 ip4:68.232.131.46 ip4:216.71.149.111 ip4:216.71.149.190 ip4:68.232.143.84 ip4:68.232.137.73 ip4:216.71.140.161 ip4:216.71.140.163 ip4:128.8.162.133 ip4:128.8.15.34 ip4:128.8.13.14 ip4:128.8.162.94 ip4:209.164.1.194 ip4:54.144.73.133 ip4:54.172.225.123 ip4:168.245.25.116 include:_spf.umd.edu include:_spf.google.com a:c.spf.service-now.com ~all
umd.edugoogle-site-verification=5uAJhrJvSIc6r3VJvDq27NdcbVU729HELEEZ0NTPG64
umd.edusij7qofovndodvjgjhmgmkeof
umd.eduZOOM_verify_ew6uSDNaRmmn1nu_Ts6o3A
umd.edugoogle-site-verification=FrrKt3ClQUFT5i_gwQAn-uQSoRI5Y_IpFExx1CmLOII
umd.eduapple-domain-verification=SfiuCrELsUoPhmWU
umd.edufastly-domain-delegation-m4fSIJZih88QgWH5trzI-424811-08-05-2021
umd.eduonetrust-domain-verification=66ba66b7aa304397ba0a1d4f6c96bc5f
_dmarc.umd.eduv=DMARC1; p=none; pct=100; rua=mailto:[email protected],mailto:[email protected]
google._domainkey.umd.eduv=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAuc26OdDu/pFkYHUHB5MhtEDSSoR++vbKUCPqZz7G17pPwHSLrIPiXjbuprqufZ60jOqft2pLJkeyz2fLxqc8Yko/Pam7Jjbd/Xrpre0yq6KbUcJOJeL3gVt7s3v9+0dnVkidVOsMWWeSVxrswG3OEICyHqBx2/InVDFvHC86ffTcjbGlaJPGv44hCcGtN5mHCD24lFpb8Jgj6CIstOpwdMwV9eUGtnYte0gucd72hqjW/5Wnn5z9CPtMf04rzUtFURquj+W4KUBHXsesOl0m76BJgsi7y9jAhTkQzqo5c9FrgYHAgg6z5RWA/0QpYDJCRXiYiwmksLcE2TscrLf+nQIDAQAB
k2._domainkey.umd.eduv=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAv2aC2KjGKLOwTweBY5A9RpjsxaBXR9r7OAU6U8/zn92ivImI75naUujWbItRI/QmL1jy5PWGqLwoUA0b90ObWaLDc+i9MtTNmGeWO009hr20fIxhGg6XBT2kjZ1DTThopSe1nAndsupmcBwlQ5Q6LJ+ZAxLcujnPIxM0ZBLmgpkv8u6RfY4eFP8OLvdAW3oSuB0DyLDigQX4Sj8wBO4YIdQH6AAmBeOsidsKAFNFUCpc3vCxtBDR12U+cBg724l3sBkMQ8evnz6idnqxq9QAVYh8k4kJ+RP+6cqTdy7LjIm8xY/bQNpQIpGUAuDo2DjLcCDun9DAI4Q/3z+Q0o9QuQIDAQAB;
k3._domainkey.umd.eduv=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAsYGiMSn7fsUqSvfSX40x9R1OlRtbNiCY80lHRIlcKx3XDIR7257aUx+q9CSIARdfTL6KCuLGNFx5g9TgVr6png4ajcieSQGtOehBgxnkDN8aAA5TX0FmFrcefJU0JoxLOF09EKgXxhSSHCk/ekVb0PXSboHXoZ9+EI404F1qhcwXXIgHXTaUthHTut2P6BBZhIXIgvDe/w49GchR7MRJqjNb7neEBbYHbgWuBTvvHCg7Gy6m6n9krYK+ROWq3dVvXy9plAGK3ygM+HtjIiMt7arRGMOF0WgDTz7YdN9BGpt6BvXxLnjiQcgS5T9n+cIyPZgiWzDMXNlaEEdKTEKxrwIDAQAB;
s1._domainkey.umd.eduk=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAyJG7231UDx9RDUnteWvcBD7VtI4H0b9LoC6Q1dUkrpbMeatzn8lz5jCMmXRDOrBs3JEF+oiAVuLkjfABfC2HttW3Zg78tWUqTM7668/coQyy9WHVcghsXnxZFx7nAarM1FrM2TvKHfH6E9cuIgTmCXom/u8VujUhrfiPbkRQ/Go9/Qkfh3yy9F++dUeAM7oZK9Zc02KsJpd29Ou466V3uGFh1PZi0RFWJ357Flh8Pm5Jq6ipeclcvGm2JigWsuGEJAMDa4iKaHsgI32tOBR/KJH6twp2hNXAK9M1KA/g+KosIuQWJnodIftgTnWUqJY9zX9szbRdTgqpUq0okh4HGwIDAQAB
s2._domainkey.umd.eduk=rsa; t=s; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDZypPHz0Q7L+nbNk2rIPnh4EFXGit3agi5pc1hZ36tnENEpODm0X/V83Z23xL52ZtkiJZm0X3q5ZCz8d5MeATO22pHLm/uqU1+7ZLKfvBqR4UJos1igG5TNqUwUXMevu5HbnUY8RwxhdqjLAxzEoVx8cek93yc8VNNIlXmgZImtQIDAQAB
mail._domainkey.umd.eduk=rsa;p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDeMVIzrCa3T14JsNY0IRv5/2V1/v2itlviLQBwXsa7shBD6TrBkswsFUToPyMRWC9tbR/5ey0nRBH0ZVxp+lsmTxid2Y2z+FApQ6ra2VsXfbJP3HE6wAO0YTVEJt1TmeczhEd2Jiz/fcabIISgXEdSpTYJhb0ct0VJRxcg4c8c7wIDAQAB

Related IP addresses

IPv4 addresses used by umd.edu: website, name servers, mail servers and senders authorized by SPF.

IP addressUsed for/24 block
94.247.142.1Website94.247.142.0/24
131.118.254.1Name server ns.ums.edu131.118.254.0/24
128.8.76.3Name server ns2.umd.edu128.8.76.0/24
128.8.74.3Name server ns1.umd.edu128.8.74.0/24
216.71.149.111Mail server mx2.umd.iphmx.com, Authorized by SPF216.71.149.0/24
68.232.143.84Mail server mx1.umd.iphmx.com, Authorized by SPF68.232.143.0/24
68.232.142.226Authorized by SPF68.232.142.0/24
68.232.131.46Authorized by SPF68.232.131.0/24
216.71.149.190Authorized by SPF216.71.149.0/24
68.232.137.73Authorized by SPF68.232.137.0/24
216.71.140.161Authorized by SPF216.71.140.0/24
216.71.140.163Authorized by SPF216.71.140.0/24
128.8.162.133Authorized by SPF128.8.162.0/24
128.8.15.34Authorized by SPF128.8.15.0/24
128.8.13.14Authorized by SPF128.8.13.0/24
128.8.162.94Authorized by SPF128.8.162.0/24
209.164.1.194Authorized by SPF209.164.1.0/24
54.144.73.133Authorized by SPF54.144.73.0/24
54.172.225.123Authorized by SPF54.172.225.0/24
168.245.25.116Authorized by SPF168.245.25.0/24

WHOIS of the domain umd.edu

This Registry database contains ONLY .EDU domains.
The data in the EDUCAUSE Whois database is provided
by EDUCAUSE for information purposes in order to
assist in the process of obtaining information about
or related to .edu domain registration records.

The EDUCAUSE Whois database is authoritative for the
.EDU domain.

A Web interface for the .EDU EDUCAUSE Whois Server is
available at: http://whois.educause.edu

By submitting a Whois query, you agree that this information
will not be used to allow, enable, or otherwise support
the transmission of unsolicited commercial advertising or
solicitations via e-mail.  The use of electronic processes to
harvest information from this server is generally prohibited
except as reasonably necessary to register or modify .edu
domain names.

-------------------------------------------------------------

Domain Name: UMD.EDU

Registrant:
	University of Maryland
	Division of Information Technology
	Main Administration Building
	College Park, MD 20742-0001
	USA

Administrative Contact:
	Domain Admin
	University of Maryland
	Division of Information Technology
	5801 University Research Court
	College Park, MD 20742-2411
	USA
	+1.3014053003
	[email protected]

Technical Contact:
	Domain Admin
	University of Maryland
	Division of Information Technology
	Main Administration Building
	College Park, MD 20742-0001
	USA
	+1.3014053003
	[email protected]

Name Servers:
	NS2.UMD.EDU
	NS.UMS.EDU
	NS1.UMD.EDU

Domain record activated:    31-Jul-1985
Domain record last updated: 21-Jul-2026
Domain expires:             31-Jul-2027

% Query time: 613 msec
% WHEN: Fri Oct 02 13:17:57 UTC 2026