Domain Intelligence
Last Updated:
Gilead Email Verification
Safe to Send
Gilead.com is operated by Gilead Sciences. 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 @gilead.com emails
Live SMTP handshake against gilead.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
Switched after a billing dispute with NeverBounce. Same SMTP results on a 5k test sample. The MX, SPF, DKIM lookup tools are a hidden value-add for debugging client deliverability complaints. James Wexler · Growth Engineer
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 gilead.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
mxa-002ff601.gslb.pphosted.com 148.163.146.49
Reachable
#10
mxb-002ff601.gslb.pphosted.com 148.163.146.49
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 mx0a-002ff601.pphosted.com ESMTP mfa-m0144916
Primary mail server accepted SMTP connection and returned a banner during the live audit.
gilead.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 include:%{ir}.%{v}.%{d}.spf.has.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.
None
TXTv=DMARC1; p=none; pct=100; fo=1; rua=mailto:dmarcreport@gilead.com,mailto:dmarc_rua@emaildefense.proofpoint.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com
Monitoring only. Receivers take no action when SPF or DKIM fails.
gilead.com Domain Registration WHOIS · Nameservers · Registrar
RegistrarCSC Corporate Domains, Inc.
IANA ID299
RegisteredMay 26, 1995
Last UpdatedApril 19, 2026
ExpiresMay 26, 2026
Age30 years
TLD.com
Authoritative Nameservers (2)
- UDNS1.CSCDNS.NET
- UDNS2.CSCDNS.UK
Registrant
Gilead Sciences Inc.
CA, UNITED STATES
About this Domain
About gilead.com
Gilead Sciences (gilead.com) is a biopharmaceutical company headquartered in Foster City, California. Gilead is a world leader in antiviral therapeutics, developing treatments for HIV, hepatitis, and COVID-19. The company also has a growing oncology portfolio and invests heavily in cell therapy research. Gilead's medications serve millions of patients globally.
Gilead implements enterprise email authentication on the gilead.com domain with SPF, DKIM, and DMARC enforcement. As a pharmaceutical company handling sensitive clinical trial data and drug development information, Gilead maintains strict email security to protect intellectual property and comply with healthcare privacy and regulatory requirements.
SMTP verification of gilead.com addresses returns definitive responses for valid and invalid mailboxes. The domain does not function as catch-all. Gilead's enterprise mail infrastructure implements rate limiting on inbound SMTP connections.
For healthcare partners communicating with Gilead employees, proper sender authentication is essential. Pharmaceutical companies enforce strict email filtering. Full SPF, DKIM, and DMARC compliance ensures reliable delivery to gilead.com addresses.
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Common Questions About gilead.com
Is gilead.com a disposable or temporary email provider?
No. gilead.com is not a disposable email provider. It is classified as Corporate Email operated by Gilead Sciences and addresses on gilead.com are persistent rather than throwaway. Mail sent to a valid gilead.com mailbox reaches a real recipient.
How do I verify if a gilead.com email address is valid?
The fastest way to verify a gilead.com email address is to use our email checker. Enter any @gilead.com mailbox at the top of this page and our system performs a real-time SMTP handshake against gilead.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 gilead.com email exists without sending a message?
Yes. Our real-time email verification API connects directly to gilead.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 gilead.com mailbox is valid, full, or non-existent. The recipient never receives anything and never sees the check.
What are the MX records for gilead.com?
gilead.com currently publishes 2 mail exchange (MX) records. The primary MX is mxa-002ff601.gslb.pphosted.com, which is the first server contacted when other mail systems try to deliver email to a gilead.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 gilead.com.
Does gilead.com use SPF, DKIM, and DMARC email authentication?
gilead.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 @gilead.com is genuine, and gilead.com's DMARC policy of 'none' instructs receivers how to handle messages that fail those checks.
Why do emails to gilead.com bounce or get blocked?
Bounces from gilead.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 gilead.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 gilead.com's receivers trust you.
How can I verify a large list of gilead.com email addresses?
Our bulk email verifier accepts CSV or TXT uploads with thousands or millions of gilead.com addresses (or any mix of domains). Every address goes through 30+ checks including SMTP existence, gilead.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 gilead.com email addresses?
Yes, with normal hygiene. gilead.com is a legitimate email service and signups from @gilead.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 gilead.com by default.
What email format does gilead.com use for usernames?
Most gilead.com mailboxes follow common patterns like first.last@gilead.com, firstinitiallast@gilead.com, or first@gilead.com, but the actual local-part rules depend on Gilead Sciences. The only reliable way to confirm whether a specific @gilead.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 gilead.com risk score calculated?
The 0-to-100 risk score for gilead.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 gilead.com score is recomputed on every audit so it always reflects the live state of the domain.
Is gilead.com a valid email domain?
Yes, gilead.com is the official corporate email domain for Gilead Sciences. It is used for internal business communications.
Is gilead.com a disposable or temporary email provider?
No, gilead.com is a corporate email domain belonging to Gilead Sciences, used exclusively by employees and authorized personnel.
What mail server does gilead.com use?
gilead.com uses enterprise-grade mail infrastructure. Check the MX records section for specific mail server details.
Can I send marketing emails to gilead.com addresses?
B2B marketing to gilead.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 gilead.com?
Corporate domains like gilead.com may use catch-all configurations that accept all addresses. Use BulkEmailChecker advanced verification to detect catch-all behavior and validate individual mailboxes.