Domain Intelligence
Last Updated:
Tdk.com
Safe to Send
Tdk.com is operated by TDK Corporation. The domain runs 2 mail exchanges and SMTP is responsive, with all three authentication standards in force.
Safe to Send
RISK
15
/100
Low
Verify Mailbox
Verify @tdk.com emails
Live SMTP handshake against tdk.com mail servers. No email is sent. 10 free per day, no signup.
Trusted by 400,000+ senders
4.9/5
From 8,500+ verified reviews
Ran our entire 47k cold outbound list through this before our Q1 push. Bounce rate dropped from 9.4% to 0.8%. The SMTP-level catch on outdated B2B contacts is what set this apart from the other verifiers I tried. Andrew Mitchell · Sr. Demand Gen Manager
SOC 2 Type II
GDPR
CCPA
99.7% Accuracy
Disposable
No
Persistent addresses, not throwaway
SMTP Live
Yes
Mail server responds to SMTP handshake
MX Records
2
Mail exchangers
Mail Exchange (MX) Records for tdk.com Mail Exchange records. They tell other mail servers which hosts are responsible for receiving email at this domain, in priority order. Lower priority numbers are tried first.
#10
mxb-00549401.gslb.pphosted.com 205.220.178.95
Reachable
#10
mxa-00549401.gslb.pphosted.com 205.220.178.95
Reachable
SMTP Handshake
Simple Mail Transfer Protocol. We open a live SMTP connection to the primary MX and read the greeting banner. A response confirms the mail server is alive and accepting connections.
Responsive
BANNER220 mx0b-00549401.pphosted.com ESMTP mfa-m0232485
Primary mail server accepted SMTP connection and returned a banner during the live audit.
tdk.com Email Authentication SPF · DKIM · DMARC
SPF
Sender Policy Framework. A DNS record listing which servers are allowed to send mail for this domain. Receivers reject or flag mail from unauthorized servers.
Pass
TXTv=spf1 mx ip4:83.125.118.114 ip4:213.164.73.25 ip4:213.182.155.252 ip4:50.201.119.0/24 ip4:24.38.43.32/27 ip4:107.20.210.250 ip4:52.1.14.157 ip4:210.161.158.221 ip4:211.16.239.3 +ip4:208.3.66.30 ip4:213.164.73.28 ip4:212.211.211.138 ip4:18.182.88.44 ip4:213.182.155.253 ip4:133.186.35.50 ip4:217.115.75.10 ip4:217.115.75.9 ip4:14.136.217.243 ip4:118.143.146.243 ip4:205.220.173.21 +ip4:205.220.161.21 ip4:213.164.65.51 ip4:161.189.53.222 ip4:205.220.178.95 ip4:205.220.166.95 ip4:129.148.11.192 ip4:103.220.10.110 ip4:210.75.13.231 ip4:3.123.206.219 ip4:3.68.129.51 +include:_netblocks.eloqua.com include:_spf.ultipro.com include:_spf.rexx-systems.com include:spf-00549402.pphosted.com -all
Authorized senders are defined and pass SPF policy.
DKIM
DomainKeys Identified Mail. The sending server cryptographically signs outbound mail with a private key, and receivers verify the signature using a public key in DNS.
Pass
SELECTORDetected via standard selectors
A DKIM signature was detected. Outbound mail from this domain can be cryptographically verified.
DMARC
Domain-based Message Authentication, Reporting & Conformance. Tells receivers what to do when SPF or DKIM checks fail: none, quarantine, or reject.
Quarantine
TXTv=DMARC1; p=quarantine; sp=none; fo=1; rua=mailto:dmarc_rua@emaildefense.proofpoint.com,mailto:8udewbmk@ag.ap.dmarcian.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com,mailto:info_sec_mem@tdk.com,mailto:8udewbmk@fr.ap.dmarcian.com
Receivers are instructed to quarantine (route to spam) any mail that fails SPF or DKIM.
tdk.com Domain Registration WHOIS · Nameservers · Registrar
RegistrarJapan Registry Services Co.,Ltd.(JPRS)
IANA ID1485
RegisteredAugust 7, 1996
Last UpdatedNovember 11, 2023
ExpiresAugust 6, 2027
Age29 years
TLD.com
Authoritative Nameservers (4)
- NS-578.AWSDNS-08.NET
- NS-345.AWSDNS-43.COM
- NS-1271.AWSDNS-30.ORG
- NS-1942.AWSDNS-50.CO.UK
Registrant
TDK Corporation
dom_admin@tdk.co.jp·Chuo-ku, Tokyo, JAPAN·81368527300
Technical Contact
IIJ Administrative Contact
gtld-tech-admin@iij.ad.jp·Chiyoda-ku, Tokyo, JAPAN·81352054466
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Common Questions About tdk.com
Is tdk.com a disposable or temporary email provider?
No. tdk.com is not a disposable email provider. It is classified as Corporate Email operated by TDK Corporation and addresses on tdk.com are persistent rather than throwaway. Mail sent to a valid tdk.com mailbox reaches a real recipient.
How do I verify if a tdk.com email address is valid?
The fastest way to verify a tdk.com email address is to use our free email checker. Enter any @tdk.com mailbox at the top of this page and our system performs a real-time SMTP handshake against tdk.com's mail servers, confirming whether the mailbox exists, is reachable, and is safe to send to. No email is ever delivered during the check.
Can I check if a tdk.com email exists without sending a message?
Yes. Our real-time email verification API connects directly to tdk.com's mail server, opens an SMTP session, and queries the mailbox using the RCPT TO command without ever transmitting an actual email. The server's response confirms whether the tdk.com mailbox is valid, full, or non-existent. The recipient never receives anything and never sees the check.
What are the MX records for tdk.com?
tdk.com currently publishes 2 mail exchange (MX) records. The primary MX is mxb-00549401.gslb.pphosted.com, which is the first server contacted when other mail systems try to deliver email to a tdk.com address. The full list with priorities and IP addresses is in the MX Records panel above. MX records tell sending servers where to route email for tdk.com.
Does tdk.com use SPF, DKIM, and DMARC email authentication?
tdk.com enforces all three email authentication standards: SPF, DKIM, and DMARC (policy: quarantine). This is the gold-standard configuration. It means receivers can verify that mail claiming to come from @tdk.com is genuine, and tdk.com's DMARC policy of 'quarantine' instructs receivers how to handle messages that fail those checks.
Why do emails to tdk.com bounce or get blocked?
Bounces from tdk.com usually fall into three buckets: the mailbox doesn't exist (5xx user unknown), the inbox is full, or your sending domain isn't authenticated to tdk.com's satisfaction. The fastest fix is to run each address through a free email verifier before you send, and to make sure your own SPF, DKIM, and DMARC are configured correctly so tdk.com's receivers trust you.
How can I verify a large list of tdk.com email addresses?
Our bulk email verifier accepts CSV or TXT uploads with thousands or millions of tdk.com addresses (or any mix of domains). Every address goes through 30+ checks including SMTP existence, tdk.com catch-all detection, role-account detection, and disposable-domain matching. Results typically come back within minutes and previously-failed addresses on your blacklist are reprocessed for free. For continuous high-volume needs, see our unlimited email verification API.
Is it safe to accept signups from tdk.com email addresses?
Yes, with normal hygiene. tdk.com is a legitimate email service and signups from @tdk.com behave like any other real user. Pipe each address through a real-time email verifier API at the moment of signup to catch typos and dead mailboxes, but there is no need to block tdk.com by default.
What email format does tdk.com use for usernames?
Most tdk.com mailboxes follow common patterns like first.last@tdk.com, firstinitiallast@tdk.com, or first@tdk.com, but the actual local-part rules depend on TDK Corporation. The only reliable way to confirm whether a specific @tdk.com address exists is to run it through a free email verification tool. Guessing patterns will produce a high bounce rate and damage your sender reputation.
How is the tdk.com risk score calculated?
The 0-to-100 risk score for tdk.com combines disposable-domain classification, mail-server reachability, MX record presence and depth, SPF / DKIM / DMARC enforcement, DMARC policy strength, SMTP banner response, and domain age. Lower scores mean safer to send to. Disposable domains are pinned at the high end of the scale. The tdk.com score is recomputed on every audit so it always reflects the live state of the domain.