Domain Intelligence
Last Updated:
Valvesoftware.com
Safe to Send
Valvesoftware.com is operated by Valve Corporation. 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 @valvesoftware.com emails
Live SMTP handshake against valvesoftware.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
Catch-all detection alone has paid for the subscription. We were hemorrhaging credits at our previous verifier on catch-all domains that accepted the call but never bounced. Saved roughly $400 per month overnight. Brett Anderson · RevOps 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 valvesoftware.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
us-smtp-inbound-1.mimecast.com 170.10.128.221
Reachable
#10
us-smtp-inbound-2.mimecast.com 170.10.132.242
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 us-smtp-inbound-1.mimecast.com ESMTP; Mon, 11 May 2026 17:10:45 -0400
Primary mail server accepted SMTP connection and returned a banner during the live audit.
valvesoftware.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 ip4:72.165.61.134/31 ip4:216.207.205.96/28 ip4:208.64.203.142/31 ip4:208.64.203.180/30 ip4:208.64.202.36/28 ip6:2620:f9:1:1::/64 include:_netblocks.mimecast.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.
Missing
No DKIM signature detected on common selectors for valvesoftware.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:e8b9a9244a5c591@rep.dmarcanalyzer.com; ruf=mailto:e8b9a9244a5c591@for.dmarcanalyzer.com; pct=100; sp=quarantine; fo=1;
Receivers are instructed to quarantine (route to spam) any mail that fails SPF or DKIM.
valvesoftware.com Domain Registration WHOIS · Nameservers · Registrar
RegistrarMarkMonitor, Inc.
IANA ID292
RegisteredOctober 6, 1996
Last UpdatedSeptember 9, 2024
ExpiresOctober 5, 2028
Age29 years
TLD.com
Authoritative Nameservers (6)
- a26-65.akam.net
- a11-67.akam.net
- a1-164.akam.net
- a8-66.akam.net
- a9-67.akam.net
- a24-64.akam.net
Registrant
Valve Corporation
UNITED STATES
Technical Contact
Hidden by registrar privacy service
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Common Questions About valvesoftware.com
Is valvesoftware.com a disposable or temporary email provider?
No. valvesoftware.com is not a disposable email provider. It is classified as Corporate Email operated by Valve Corporation and addresses on valvesoftware.com are persistent rather than throwaway. Mail sent to a valid valvesoftware.com mailbox reaches a real recipient.
How do I verify if a valvesoftware.com email address is valid?
The fastest way to verify a valvesoftware.com email address is to use our free email checker. Enter any @valvesoftware.com mailbox at the top of this page and our system performs a real-time SMTP handshake against valvesoftware.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 valvesoftware.com email exists without sending a message?
Yes. Our real-time email verification API connects directly to valvesoftware.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 valvesoftware.com mailbox is valid, full, or non-existent. The recipient never receives anything and never sees the check.
What are the MX records for valvesoftware.com?
valvesoftware.com currently publishes 2 mail exchange (MX) records. The primary MX is us-smtp-inbound-1.mimecast.com, which is the first server contacted when other mail systems try to deliver email to a valvesoftware.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 valvesoftware.com.
Does valvesoftware.com use SPF, DKIM, and DMARC email authentication?
valvesoftware.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 valvesoftware.com mail.
Why do emails to valvesoftware.com bounce or get blocked?
Bounces from valvesoftware.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 valvesoftware.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 valvesoftware.com's receivers trust you.
How can I verify a large list of valvesoftware.com email addresses?
Our bulk email verifier accepts CSV or TXT uploads with thousands or millions of valvesoftware.com addresses (or any mix of domains). Every address goes through 30+ checks including SMTP existence, valvesoftware.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 valvesoftware.com email addresses?
Yes, with normal hygiene. valvesoftware.com is a legitimate email service and signups from @valvesoftware.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 valvesoftware.com by default.
What email format does valvesoftware.com use for usernames?
Most valvesoftware.com mailboxes follow common patterns like first.last@valvesoftware.com, firstinitiallast@valvesoftware.com, or first@valvesoftware.com, but the actual local-part rules depend on Valve Corporation. The only reliable way to confirm whether a specific @valvesoftware.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 valvesoftware.com risk score calculated?
The 0-to-100 risk score for valvesoftware.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 valvesoftware.com score is recomputed on every audit so it always reflects the live state of the domain.
Is valvesoftware.com a valid corporate email domain?
Yes, valvesoftware.com is the official corporate email domain for Valve Corporation. It is used for internal business communications and is not available for public registration.
Is valvesoftware.com a disposable or temporary email provider?
No, valvesoftware.com is a corporate email domain belonging to Valve Corporation, used exclusively by employees and authorized personnel.
What mail server does valvesoftware.com use?
valvesoftware.com uses enterprise-grade mail infrastructure. Check the MX records section above for specific mail server details.
Can I send marketing emails to valvesoftware.com addresses?
B2B marketing to valvesoftware.com requires proper consent. Corporate domains may use catch-all configurations, so verify individual addresses before sending.
How do I verify an email address at valvesoftware.com?
Corporate domains like valvesoftware.com may use catch-all configurations. Use BulkEmailChecker's advanced verification to detect catch-all behavior.