Domain Intelligence
Last Updated:
Ajinomoto.com
Safe to Send
Ajinomoto.com is operated by Ajinomoto Co. The domain runs 1 mail exchange and SMTP is not currently responding, with all three authentication standards in force.
Safe to Send
RISK
23
/100
Low
Verify Mailbox
Verify @ajinomoto.com emails
Live SMTP handshake against ajinomoto.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 The SMTP-level catch on outdated B2B contacts is what set this apart from the other verifiers I tried.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
No
Mail server not responding to SMTP
MX Records
1
Mail exchangers
Mail Exchange (MX) Records for ajinomoto.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.
#0
No Response
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.
No Response
BANNER220 ajinomoto.com ESMTP Service Ready
Primary mail server did not respond to SMTP within the audit timeout. Mail to ajinomoto.com may bounce.
ajinomoto.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 ip4:210.151.17.0/24 ip4:113.146.135.64/26 ip4:133.162.188.108 ip4:133.162.188.120 ip4:54.64.120.95 ip4:114.160.54.240 ip4:133.250.239.200 ip4:133.250.180.1 include:asp.cuenote.jp include:_spf.smoothfile.jp include:webcas.net include:crmstyle.com ip4:52.193.203.225 include:mail-ad.jp include:amazonses.com include:em7665.ajinomoto.com include:shops.shopify.com include:spf-bma.mpme.jp ~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.
None
TXTv=DMARC1;p=none;rua=mailto:471eb9b4.ajinomoto.com@jp.teams.ms,mailto:dm0m2efh6y452.rua@dmarc.smtps.jp;sp=none
Monitoring only. Receivers take no action when SPF or DKIM fails.
ajinomoto.com Domain Registration WHOIS · Nameservers · Registrar
RegistrarCSC Corporate Domains, Inc.
IANA ID299
RegisteredOctober 14, 1996
Last UpdatedApril 20, 2026
ExpiresOctober 14, 2026
Age29 years
TLD.com
Authoritative Nameservers (4)
- ns-1949.awsdns-51.co.uk
- ns-1058.awsdns-04.org
- ns-859.awsdns-43.net
- ns-203.awsdns-25.com
Registrant
AJINOMOTO CO., INC
Tokyo, JAPAN
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Common Questions About ajinomoto.com
Is ajinomoto.com a disposable or temporary email provider?
No. ajinomoto.com is not a disposable email provider. It is classified as Corporate Email operated by Ajinomoto Co and addresses on ajinomoto.com are persistent rather than throwaway. Mail sent to a valid ajinomoto.com mailbox reaches a real recipient.
How do I verify if a ajinomoto.com email address is valid?
The fastest way to verify a ajinomoto.com email address is to use our free email checker. Enter any @ajinomoto.com mailbox at the top of this page and our system performs a real-time SMTP handshake against ajinomoto.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 ajinomoto.com email exists without sending a message?
Yes. Our real-time email verification API connects directly to ajinomoto.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 ajinomoto.com mailbox is valid, full, or non-existent. The recipient never receives anything and never sees the check.
What are the MX records for ajinomoto.com?
ajinomoto.com currently publishes 1 mail exchange (MX) record. The primary MX is , which is the first server contacted when other mail systems try to deliver email to a ajinomoto.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 ajinomoto.com.
Does ajinomoto.com use SPF, DKIM, and DMARC email authentication?
ajinomoto.com enforces all three email authentication standards: SPF, DKIM, and DMARC (policy: none). This is the gold-standard configuration. It means receivers can verify that mail claiming to come from @ajinomoto.com is genuine, and ajinomoto.com's DMARC policy of 'none' instructs receivers how to handle messages that fail those checks.
Why do emails to ajinomoto.com bounce or get blocked?
Bounces from ajinomoto.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 ajinomoto.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 ajinomoto.com's receivers trust you.
How can I verify a large list of ajinomoto.com email addresses?
Our bulk email verifier accepts CSV or TXT uploads with thousands or millions of ajinomoto.com addresses (or any mix of domains). Every address goes through 30+ checks including SMTP existence, ajinomoto.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 ajinomoto.com email addresses?
Yes, with normal hygiene. ajinomoto.com is a legitimate email service and signups from @ajinomoto.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 ajinomoto.com by default.
What email format does ajinomoto.com use for usernames?
Most ajinomoto.com mailboxes follow common patterns like first.last@ajinomoto.com, firstinitiallast@ajinomoto.com, or first@ajinomoto.com, but the actual local-part rules depend on Ajinomoto Co. The only reliable way to confirm whether a specific @ajinomoto.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 ajinomoto.com risk score calculated?
The 0-to-100 risk score for ajinomoto.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 ajinomoto.com score is recomputed on every audit so it always reflects the live state of the domain.