Proceed With Care ยท Medium risk

Verify Emails at Cosco.com

Real-time SMTP verification with 99.7% accuracy. Check any @cosco.com address before you send, no signup required.

SMTP No Response MX 1 Auth 0/3 Persistent
Cosco.com Email Checker
LIVE
41Deliverability
1MX Records
10 / 10Free Checks
Verify 10,000 Cosco.com emails for just $9.95
Military-Grade Encryption
ISO 27001
SOC 2 Type II
GDPR
CCPA
HIPAA

Deliverability

4 signals
Deliverability41/100
Risk Score59
Blacklists0/8
Domain Age26 years

Infrastructure

5 signals
SMTP StatusNo Response
MX Records1
Authentication0/3
Accepts MailNo
Catch-AllNot detected

Classification

4 signals
Domain TypeCorporate Email
DisposableNo
Free ProviderNo
Mail Providercosco.com

Verification Status

June 2, 2026

Yes. You can verify any @Cosco.com address in real time with a direct SMTP handshake that provides 99.7% accuracy. Cosco.com is operated by COSCO Shipping, runs 1 mail server, enforces 0 of 3 authentication standards, and is currently not responding to SMTP.

Valid providerYesYes
Mail Providercosco.com
MX Records1Active
Authentication0/3None

Cosco.com Key Facts

Corporate Domain
Mail Providercosco.com
Domain TypeCorporate Email
MX Records1 mailex.cosco.com
SMTP StatusNo ResponseNo Response
SPF / DKIM / DMARCMissing / Missing / Missing
Catch-AllNot detected
DisposableNoNo
Domain Age26 years (since 1999)
RegistrarNetwork Solutions, LLC
Last VerifiedJune 2, 2026

How to read your Cosco.com verification result

Every check returns one of three clear outcomes so you know exactly what to do with the address.

Passed - Safe to Send

The mailbox exists and accepts mail. Send with confidence, the address is deliverable.

Failed - Do Not Send

The mailbox does not exist, is disposable, or will hard-bounce. Remove it to protect your sender reputation.

Unknown - Use Caution

The server is catch-all or greylisting, so existence cannot be confirmed. Send selectively and watch engagement.

What are Cosco.com's MX records?

cosco.com publishes 1 MX record. The primary mail exchanger is mailex.cosco.com, hosted by cosco.com, and it is currently not responding to SMTP. Mail is routed through these servers in priority order, lowest number first.

MX Records

1 record
PriorityHostnameIPStatus
1 mailex.cosco.com 218.249.115.168 No Response

Infrastructure

No Response
SMTP StatusNo ResponseNo Response
Primary MXmailex.cosco.com
Mail Providercosco.com
Accepts MailNo
Catch-AllNot detected
220 cosco.com ESMTP Service Ready

Can you verify Cosco.com email addresses?

Yes. cosco.com is a valid email domain, operated by COSCO Shipping. Addresses are persistent and real mail reaches a genuine recipient. Individual mailboxes still go stale, so verify each one before you send.

Verification method

SMTP

A live SMTP handshake connects to Cosco.com's mail server and asks whether the mailbox exists using the RCPT TO command, without ever transmitting a message. The recipient never sees the check.

Accuracy

99.7%

Each address runs through 30+ checks including SMTP existence, catch-all detection, role-account filtering, and disposable matching. The same engine has verified billions of addresses since 2012.

Why verify Cosco.com emails before you send?

Every unverified address is a gamble. Here is what happens when you skip verification and mail a list that has not been cleaned.

Catch role changes

People leave companies. Verification flags cosco.com mailboxes deactivated since you collected them.

Avoid dead mailboxes

Expired or full cosco.com inboxes hard-bounce. A live SMTP check catches them before you hit send.

Protect sender reputation

Low bounce rates keep you trusted by cosco.com mail servers and the major mailbox providers.

Keep CRM data accurate

Verified contacts mean your CRM, lead scoring, and routing all run on addresses that reach a person.

Who operates Cosco.com?

Cosco.com is COSCO Shipping, registered through Network Solutions, LLC and first seen Nov 27, 1999.

Registration (WHOIS)

.com
RegistrarNetwork Solutions, LLC / IANA 2
RegisteredNov 27, 1999 / 26 years old
UpdatedNov 27, 2023
ExpiresNov 27, 2033
RegistrantRegistrant Street: Floor 11 Ocean Plaza, / yaojiuwu@COSCO.COM / Beijing, --, CHINA
Tech ContactYao, Jiuwu / yaojiuwu@COSCO.COM / CHINA
HOME.COSCO.COM.CNNS2.COSCON.COM

Domain Profile

Corporate Email
Domaincosco.com
OrganizationCOSCO Shipping
TypeCorporate Email
Mail Providercosco.com
SPFMissingMissing
DKIMMissingMissing
DMARCMissingMissing

Cosco.com is COSCO Shipping, classified as corporate email running on cosco.com. It operates 1 mail server and is not currently answering SMTP.

When verifying cosco.com addresses, the checker connects directly to cosco.com over SMTP. With 0 of 3 authentication standards in place and SMTP not currently responding, verification results for this domain carry moderate confidence.

How do you verify Cosco.com emails in bulk?

Upload a CSV or TXT list of Cosco.com addresses to the bulk email verifier. Every address runs through a live SMTP handshake plus catch-all, role-account and disposable detection, and you download a clean list when processing completes. For real-time checks at signup, use the real-time email verification API.

1

Upload your list

CSV or TXT with one email per line. No formatting needed.

2

SMTP verification runs

Each Cosco.com address is checked with a live server handshake.

3

Download clean results

Get a verified list with status codes, risk flags, and catch-all detection.

Verify Cosco.com emails from $0.0001 each

Pay as you go. No subscriptions, and credits never expire.

10,000 Verifications
$9.95
$0.00099 per email
One-time payment. No contracts.
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$23.95
$0.00095 per email
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$44.95
$0.00089 per email
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$74.95
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Frequently asked questions about Cosco.com

Everything about verifying email at this domain.

Yes, cosco.com is the official corporate email domain for COSCO Shipping. It is used for internal business communications and is not available for public registration.

No, cosco.com is a corporate email domain belonging to COSCO Shipping, used exclusively by employees and authorized personnel.

cosco.com uses enterprise-grade mail infrastructure. Check the MX records section above for specific mail server details.

B2B marketing to cosco.com requires proper consent. Corporate domains may use catch-all configurations, so verify individual addresses before sending.

Corporate domains like cosco.com may use catch-all configurations. Use BulkEmailChecker's advanced verification to detect catch-all behavior.

Upload a CSV or TXT list to the bulk email verifier. Every address runs through 30+ checks including SMTP existence, catch-all detection, role-account, and disposable matching. Processing time depends on list size.

99.7% accurate using a direct SMTP handshake with cosco.com's mail servers, the same engine that has verified billions of addresses since 2012.