ecmc.edu - DNS, WHOIS, DMARC and SPF of the domain name

Summary

Registrar: —
Status
Created on: April 29, 1994
Expires on: July 31, 2027
Name servers: ns3.ecmc.edu, ns2.ecmc.edu, ns1.ecmc.edu
Mail servers: ecmc-edu.mail.protection.outlook.com
DMARC: Monitoring
SPF: Soft
DKIM: 5 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 ecmc.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]
Failure reports: —

Record

v=DMARC1; p=none; rua=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 ecmc.edu.

Rule	Value	Result
ip4	34.168.219.157	Allowed
ip4	104.196.224.225	Allowed
ip4	161.136.4.36	Allowed
ip4	161.136.216.16	Allowed
include	spf.protection.outlook.com	Allowed
all	—	Suspicious

Top-level DNS lookups: 1 of 10 allowed

Record

v=spf1 ip4:34.168.219.157 ip4:104.196.224.225 ip4:161.136.4.36 ip4:161.136.216.16 include:spf.protection.outlook.com ~all

E-mail signing (DKIM)

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

Selector	Likely service	Key	Status
selector1	Microsoft 365	RSA 2048 bits	Active
selector2	Microsoft 365	RSA 1024 bits · short	Active
s1	SendGrid	RSA 2048 bits	Active
s2	SendGrid	RSA 1024 bits · short	Active
default	—	RSA 2048 bits	Active

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 ecmc.edu arrive; SPF, DKIM and DMARC let mail servers check that an e-mail claiming to come from ecmc.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 @ecmc.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

ecmc.edu  MX  10 mx1.ecmc.edu.
ecmc.edu  MX  20 mx2.ecmc.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.ecmc.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

ecmc.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.ecmc.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.ecmc.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.ecmc.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.ecmc.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 ecmc.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.

Type	IP address
A	23.185.0.2
AAAA	2620:12a:8001::2
AAAA	2620:12a:8000::2

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.

Server	IP address
ns3.ecmc.edu	—
ns2.ecmc.edu	—
ns1.ecmc.edu	—

Mail servers (MX)

MX records point to the servers that receive e-mails sent to the domain, that is to @ecmc.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.

Priority	Server	IP address
10	ecmc-edu.mail.protection.outlook.com	52.101.41.122

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.ecmc.edu.

Name	Content
ecmc.edu	mmOo39rm61ujuef3anO84j4ehi
ecmc.edu	24vo4h6mo73j0rppp2fpg53pj9
ecmc.edu	MS=ms7019433
ecmc.edu	300DCADFED79A7D21EB4D8704FD45390C8F8EC43
ecmc.edu	h7kpsg96cn6ecalda935gh83qm
ecmc.edu	8li670gors45ngqe9d9rlt6pon
ecmc.edu	cisco-ci-domain-verification=4d146a97ffe5ebb7cf95bba1defae60324a05eacc4a0a8fba410fe375da8a697
ecmc.edu	apple-domain-verification=sdCLP2kZtDByiJ1r
ecmc.edu	intersight=f01b3f9f00fd397028ba88d5c2e971ec88c288365628b218bd9777cbefd13350
ecmc.edu	QCBXJI29
ecmc.edu	v=sp1include:spf-amer.onbmcaddthe.com-all
ecmc.edu	K933tErz
ecmc.edu	google-site-verification=KqWJ_G2a7Uu5oTO4zsDr-VK4DYXCk790jTZzk04y3nT4
ecmc.edu	apple-domain-verification=SysG2PhX3VDEsPY9
ecmc.edu	va8o180hm1oq12tc5c9v9k07g2
ecmc.edu	mm0o39rm61ujuef3an084j4ehi
ecmc.edu	kqlm61916oo7vkv1c3me5hf8gh
ecmc.edu	google-site-verification=rK6GqUk22sGN6RL7S7O5MWbC2fCwz2CXRqatD_MBquU
ecmc.edu	MS=C64ABB0515BAAC8BF321D71BE300826BC5199817
ecmc.edu	google-site-verification=pYT7rXCfz786K-9c0jShwLdrNaD-Orh8qyzHeG8MCos
ecmc.edu	v=spf1 ip4:34.168.219.157 ip4:104.196.224.225 ip4:161.136.4.36 ip4:161.136.216.16 include:spf.protection.outlook.com ~all
ecmc.edu	ZOOM_verify_TCvCR6QUSja-BFBLEylmsg
ecmc.edu	558aun1d7t8ae14kqd1gpak5d1
ecmc.edu	MS=ms3118573
_dmarc.ecmc.edu	v=DMARC1; p=none; rua=mailto:[email protected]
selector1._domainkey.ecmc.edu	v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAwmxwnadYMCqaJg3iuFi+u4N0afjnpYrxMSQNN5UAINCBZnjxUWK8rl8x5sxSJjzoh5T03htTMu8yEwE57XL/uN7kC8+bj6BXVInJSZqoxJEdhaJmIwb2UCmFhCDpnQp3Qe4mL0V4MHR0tR5935MvvfBF3OGofFjjyX1PGR9YVsIyy/eUtkUj8rjQ3GduCYr6vpPENnbm5zemdswXnqgofZzXb4RQani/zf5ITvQhu3O6Nb3KfoPNnKFB0Ss4Y8hJOUlWUnoitKPqaoPh5fknUInYpXUtKO/MeXwU9kxhSpjYS7jXn3wW4HZ8MJjQIKU6x3pKzzg1BaUe0xAx/WBhxQIDAQAB;
selector2._domainkey.ecmc.edu	v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCrxGxdx5pgx2sWf+33PeXkNuQZTpoZss9e/Edic75a2+KNBPKnz5y0fU0oX1+fpxd6dbSn514jX4B+D0YhxNHB+TlSuHfWm9tn56Qzlk+YhlSQ+N38UF8U2r3XWWmPhYWjBQQT19E/1mSIkYu2HxsFyrZXctGFtUuVLZnThxs+BwIDAQAB;
s1._domainkey.ecmc.edu	k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAwaDgsJPoYehPCNZpb2O5Mc8s9+KxOfchQvnoTZHjDCW2J+Qq1yS7nX0vv4L8jJqu/Oy6haXU/U9OdC9vvTyF+BD+kp0qMm6pDKvj4l78pTB2kkHZdHWJJmJE1VqoAKmKFcaljNXcwaRq8YPOVqnKaT5nENRE2noQwPC4O/zG4Xe8ZBK6jDCGv6pOCWGj4jbG5899FGOg0fjbjHrPBsI6XyrYJ9YvudKixTjCMjmEFSuo+jVTaVxzMzbKQmugrbDKJUwhUtatn3G4/7gAIaWhd6KnVUgiO5ZRJWbkwch7A7Z02MO036DfkvSakYBOGPcZ26JBse8aC3pWF9wilFi/+QIDAQAB
s2._domainkey.ecmc.edu	k=rsa; t=s; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDA+BwuJobVaJ5nCLaDw62AfUs2mJHqIf0+Gi0u3bG6PGIvlYB2/QJAQ1yg6qzEehtIHIm+lpTzl10vaq1c5eP/L0E7v5HkMKeb4A/FGzHitaKiTk1unEm0CQWcB9WerLmlBG886NQCjpRIvykTwBElHQRl+cPKoxvNFbzY+jA8tQIDAQAB
default._domainkey.ecmc.edu	v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAxvEBIBY3a7QmIWxxMQ82dBxNmifm+WoWAHQoS6jvB6Fn5udPloEXGMnETMF4vC7xLI84uTr2olM8Bc9oYRcup3GUqj0NbkG3y3mxnk0q5tqCfBZdaWg2OHCU1Jvn14kubvyWgVg7UoIiiIkpZJp3zhqaiAByR3YfqiPiw870mXrAxrg/JUAlKPiN6iTYICJbz7Rj/TlqwsLZdoBR6L2hvco4VLjB7xq4U3xT9Q4Xw2ZJi0pmLb8a8f7racR/kjqbaV/L5LHhw9gAQU81T57S9tkMXzOH8bXbj3JRCQVveJbdbnb7tG6h2F8Yiwz83lxFIUJHjWBKx0aMX0ck0IIoYQIDAQAB;

Related IP addresses

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

IP address	Used for	/24 block
23.185.0.2	Website	23.185.0.0/24
52.101.41.122	Mail server ecmc-edu.mail.protection.outlook.com	52.101.41.0/24
34.168.219.157	Authorized by SPF	34.168.219.0/24
104.196.224.225	Authorized by SPF	104.196.224.0/24
161.136.4.36	Authorized by SPF	161.136.4.0/24
161.136.216.16	Authorized by SPF	161.136.216.0/24

WHOIS of the domain ecmc.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: ECMC.EDU

Registrant:
	Erie County Medical Center
	HIS Department
	462 Grider Street
	Buffalo, NY 14215
	USA

Administrative Contact:
	John Cumbo
	Erie County Medical Center
	462 Grider Street
	Buffalo, NY 14215
	USA
	+1.7168983984
	[email protected]

Technical Contact:
	Thomas Gorczynski
	Erie County Medical Center
	462 Grider Street
	Buffalo, NY 14215
	USA
	+1.7168983165
	[email protected]

Name Servers:
	NS3.ECMC.EDU
	NS1.ECMC.EDU
	NS2.ECMC.EDU

Domain record activated:    29-Apr-1994
Domain record last updated: 06-Jul-2026
Domain expires:             31-Jul-2027

% Query time: 533 msec
% WHEN: Fri Oct 02 08:21:02 UTC 2026