irs.gov - Email Domain Verification & Deliverability Report

Active Government Email
Organization: Internal Revenue Service
Mail Server: irs.gov
Verified 16 hours ago

Verify email addresses @irs.gov. View MX records, mail server configuration, and authentication status for Internal Revenue Service.

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MX Records for irs.gov

PriorityMail ServerIP Address
10 emge.irs.gov 152.216.7.167
10 emgc.irs.gov 152.216.11.139
20 emgw.irs.gov 152.216.13.169
SMTP Status: Responding
SMTP Banner:
220 EMG5.irs.gov ESMTP

irs.gov uses irs.gov mail servers, which means emails are processed through irs.gov infrastructure with their built-in spam filtering and security controls.

Email Authentication for irs.gov

SPF Record Pass

v=spf1 ip4:152.216.0.0/20 ip6:2610:30::/32 -all

SPF (Sender Policy Framework) specifies which mail servers are authorized to send email on behalf of irs.gov.

DMARC Record Reject

v=DMARC1; p=reject; rua=mailto:dmarc-agg-feed@ofdp.irs.gov,mailto:reports@dmarc.cyber.dhs.gov; ruf=mailto:dmarc-for-feed@ofdp.irs.gov; fo=1

DMARC (Domain-based Message Authentication) tells receiving servers what to do with emails that fail authentication checks.

DKIM Not Detected

DKIM detection is limited from external scanning. The domain may use DKIM with selectors not covered by our scan.

Authentication Summary: irs.gov has SPF and DMARC configured. This provides good protection against email spoofing. Senders can expect reliable email delivery to this domain.

WHOIS & Domain Information

Registration Details

Domain
irs.gov
TLD
.gov
Created
1997-10-01
Updated
2025-08-09
Expires
2026-08-04
Domain Age
28 years

Registrar

Name
get.gov
IANA ID
93

Registrant Contact

Name
REDACTED FOR PRIVACY
Organization
REDACTED FOR PRIVACY
Location
REDACTED FOR PRIVACY, REDACTED FOR PRIVACY, UNITED STATES

Technical Contact

Name
REDACTED FOR PRIVACY
Organization
REDACTED FOR PRIVACY
Location
REDACTED FOR PRIVACY, REDACTED FOR PRIVACY, UNITED STATES

Name Servers

  • ns0022.secondary.cloudflare.com
  • ns0227.secondary.cloudflare.com

Email Verification for irs.gov Government Addresses

The Internal Revenue Service (irs.gov) is the U.S. federal agency responsible for tax collection and tax law enforcement. The IRS processes hundreds of millions of tax returns annually, administers the tax code, and issues refunds to taxpayers. It is one of the most impersonated government agencies in the world.

The IRS implements mandatory DMARC enforcement per CISA BOD 18-01 with strict SPF, DKIM, and DMARC authentication. The IRS is the single most impersonated government entity for phishing attacks, making email authentication critical. The IRS has publicly stated it initiates most contact via postal mail, not email.

The irs.gov mail servers do not operate as catch-all. Recipients are validated and invalid addresses rejected. The IRS applies some of the strictest email security filtering in the federal government.

Reliable delivery to irs.gov requires flawless authentication. The IRS applies the most rigorous filtering given its status as the top target for government impersonation phishing.

How to Verify irs.gov Email Addresses

Need to check if an email address at irs.gov actually exists before you send to it? BulkEmailChecker performs deep SMTP-level validation, connecting directly to irs.gov's mail servers to confirm the mailbox is real, active, and able to receive your message. No test email is ever sent, so your sender reputation stays protected.

Verify a Single irs.gov Email
Use BulkEmailChecker's free email verification tool to instantly validate any irs.gov address. You'll get a complete deliverability report including mailbox existence, catch-all detection, disposable domain flagging, and risk scoring, all in under 3 seconds.

Verify a List of irs.gov Emails in Bulk
Have a mailing list full of irs.gov addresses? Upload your CSV or TXT file to BulkEmailChecker and verify thousands of email addresses in minutes. Our bulk verification engine runs 30+ checks per address including syntax validation, DNS resolution, SMTP handshake, and spam trap detection. Clean your list before every campaign to keep bounce rates below 2% and protect your sender score. See bulk pricing.

Verify irs.gov Emails via API in Real-Time
Building a signup form, CRM integration, or lead capture system? BulkEmailChecker's real-time verification API validates irs.gov email addresses at the point of entry, blocking invalid, disposable, and risky addresses before they enter your database. Integrate with a single API call and prevent bad data at the source.

Frequently Asked Questions

Yes, irs.gov is an official government email domain used by Internal Revenue Service. Government domains are verified and regulated, making them highly trustworthy.
No, irs.gov is an official government domain used by Internal Revenue Service for official government communications.
irs.gov uses government-managed mail infrastructure with strict security measures and email authentication.
Sending unsolicited marketing emails to government addresses at irs.gov is generally not recommended. Only send with explicit opt-in consent.
Government domains like irs.gov often have strict mail server configurations. Use BulkEmailChecker for reliable verification results.
The fastest and most accurate way to verify a irs.gov email address is to use BulkEmailChecker's free email verification tool. Simply enter the full email address and our system performs SMTP-level validation by connecting directly to irs.gov's mail servers. You'll get instant results showing whether the mailbox exists, is deliverable, and is safe to send to, all without sending a single email.
Yes. BulkEmailChecker uses SMTP verification to check if a irs.gov mailbox exists without ever delivering an email. Our system connects to the domain's mail server, performs an SMTP handshake, and queries the mail server to confirm whether the recipient address is valid. This process is completely invisible to the email recipient and does not affect your sender reputation.
Sending to invalid email addresses causes hard bounces, which directly damage your sender reputation. Internet Service Providers (ISPs) and email providers track your bounce rate, and if it exceeds 2%, your emails may start landing in spam folders or get blocked entirely. Verifying irs.gov addresses with BulkEmailChecker before sending prevents bounces and keeps your deliverability high.
BulkEmailChecker's bulk verification service lets you upload a CSV or TXT file containing thousands of irs.gov email addresses and verify them all at once. Each address goes through 30+ verification checks including syntax validation, DNS/MX lookup, SMTP verification, disposable domain detection, and spam trap identification. Results are typically ready within minutes and can be downloaded as a clean, verified list.
Email verification is the process of confirming that an email address is real, properly formatted, and capable of receiving messages. It matters because sending to invalid addresses causes bounces, damages your sender reputation, wastes marketing budget, and can get your sending IP blacklisted. BulkEmailChecker verifies addresses at the SMTP level, the most accurate method available, ensuring your emails reach real people.
MX (Mail Exchange) records are DNS entries that specify which mail servers are responsible for receiving email for a domain. When you send an email, your mail server looks up the recipient domain's MX records to find where to deliver the message. If a domain has no MX records, it cannot receive email. BulkEmailChecker checks MX records as part of every verification to confirm the domain is configured for email delivery.
A catch-all (or accept-all) domain is configured to accept email sent to any address at that domain, regardless of whether the specific mailbox exists. This makes it harder to verify individual addresses because the server always responds positively. BulkEmailChecker detects catch-all configurations and flags them in verification results so you can make informed decisions about sending to those addresses.
Yes. BulkEmailChecker offers a real-time email verification API that you can integrate into signup forms, CRM systems, lead capture tools, and any application that collects email addresses. The API validates addresses at the point of entry, blocking invalid, disposable, and risky emails before they enter your database. Integration takes just a single API call with response times under 3 seconds.

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