Domain Intelligence
Last Updated:
Usa.com
Safe to Send
Usa.com is operated by USA.com Inc.. The domain runs 2 mail exchanges and SMTP is responsive, with 2 of 3 authentication standards in place.
Safe to Send
RISK
27
/100
Low
Verify Mailbox
Verify @usa.com emails
Live SMTP handshake against usa.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
Disposable detection is the strongest I've tested. We were drowning in fake signups before integration. Fraudulent account creation dropped roughly 80% in the first 10 days. Risk score on the lookup pages helps our analysts triage faster too. Elena Reyes · Trust & Safety, Fintech
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 usa.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
mx01.mail.com 74.208.5.22
Reachable
#10
mx00.mail.com 74.208.5.20
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 mail.com (mxgmxus002) Nemesis ESMTP Service ready
Primary mail server accepted SMTP connection and returned a banner during the live audit.
usa.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 redirect=_spf.mail.com
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.
Missing
No DKIM signature detected on common selectors for usa.com.
No DKIM signature was detected. Receivers cannot verify the integrity of outbound mail.
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; rua=mailto:dmarcreport@mail.com
Receivers are instructed to quarantine (route to spam) any mail that fails SPF or DKIM.
usa.com Domain Registration WHOIS · Nameservers · Registrar
RegistrarRegister.com, Inc.
IANA ID1375
RegisteredFebruary 2, 1999
Last UpdatedDecember 26, 2025
ExpiresFebruary 2, 2027
Age27 years
TLD.com
Authoritative Nameservers (4)
- pdns3.ultradns.org
- pdns2.ultradns.net
- pdns4.ultradns.org
- pdns1.ultradns.net
Registrant
ATTN Domain Inquiries
domains@world.com·Bedminster, NJ, UNITED STATES·19089982344
Technical Contact
ATTN Domain Inquiries
domains@world.com·UNITED STATES·19089982344
About this Domain
About usa.com
usa.com is a free email service from USA.com Inc., providing basic webmail access to users who want a straightforward American-branded email address.
usa.com supports SPF authentication for outbound email. Standard anti-spam filtering applies.
The usa.com mail servers validate recipients and reject invalid addresses. The domain does not function as catch-all. Rate limiting applies from unknown senders.
For delivery to usa.com, authenticate with SPF. Follow CAN-SPAM requirements and maintain clean lists.
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Common Questions About usa.com
Is usa.com a disposable or temporary email provider?
No. usa.com is not a disposable email provider. It is classified as Free Email Provider operated by USA.com Inc. and addresses on usa.com are persistent rather than throwaway. Mail sent to a valid usa.com mailbox reaches a real recipient.
How do I verify if a usa.com email address is valid?
The fastest way to verify a usa.com email address is to use our free email checker. Enter any @usa.com mailbox at the top of this page and our system performs a real-time SMTP handshake against usa.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 usa.com email exists without sending a message?
Yes. Our real-time email verification API connects directly to usa.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 usa.com mailbox is valid, full, or non-existent. The recipient never receives anything and never sees the check.
What are the MX records for usa.com?
usa.com currently publishes 2 mail exchange (MX) records. The primary MX is mx01.mail.com, which is the first server contacted when other mail systems try to deliver email to a usa.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 usa.com.
Does usa.com use SPF, DKIM, and DMARC email authentication?
usa.com has 2 of the 3 standard email authentication records in place: SPF, and DMARC (policy: quarantine). Adding the missing layer(s) would tighten anti-spoofing protection and improve deliverability for legitimate usa.com mail.
Why do emails to usa.com bounce or get blocked?
Bounces from usa.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 usa.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 usa.com's receivers trust you.
How can I verify a large list of usa.com email addresses?
Our bulk email verifier accepts CSV or TXT uploads with thousands or millions of usa.com addresses (or any mix of domains). Every address goes through 30+ checks including SMTP existence, usa.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 usa.com email addresses?
Yes, with normal hygiene. usa.com is a legitimate email service and signups from @usa.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 usa.com by default.
What email format does usa.com use for usernames?
Most usa.com mailboxes follow common patterns like first.last@usa.com, firstinitiallast@usa.com, or first@usa.com, but the actual local-part rules depend on USA.com Inc.. The only reliable way to confirm whether a specific @usa.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 usa.com risk score calculated?
The 0-to-100 risk score for usa.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 usa.com score is recomputed on every audit so it always reflects the live state of the domain.
Is usa.com a valid email domain?
Yes, usa.com is a valid free email domain operated by USA.com Inc.. It provides permanent email accounts to users.
Is usa.com a disposable or temporary email provider?
No, usa.com is not a disposable or temporary email provider. It offers permanent email accounts with standard email features.
What mail server does usa.com use?
usa.com uses mail servers operated by USA.com Inc.. Check the MX records section above for specific server details.
Can I send marketing emails to usa.com addresses?
Yes, with proper opt-in consent. Follow email best practices and ensure SPF, DKIM, and DMARC authentication is configured for your sending domain.
How do I verify an email address at usa.com?
Use BulkEmailChecker to verify usa.com addresses via SMTP checks. Verification behavior varies by provider. Our tool handles provider-specific rate limiting automatically.