aclu.org - Email Domain Verification & Deliverability Report

Active Corporate Email
Organization: American Civil Liberties Union
Mail Server: Proofpoint
Verified 5 days ago

Verify email addresses @aclu.org. View MX records, mail server configuration, and authentication status for American Civil Liberties Union.

Email Verification Tool
LIVE
SMTP Check
Mailbox Detection
Disposable Check
No Email Sent

MX Records for aclu.org

PriorityMail ServerIP Address
0 mxa-00331601.gslb.pphosted.com 148.163.141.116
0 mxb-00331601.gslb.pphosted.com 148.163.141.116
SMTP Status: Responding
SMTP Banner:
220 mx0b-00331601.pphosted.com ESMTP mfa-m0158045

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

Email Authentication for aclu.org

SPF Record Pass

v=spf1 mx ip4:148.163.145.116 ip4:148.163.141.116 ip4:40.92.0.0/15 ip4:40.107.0.0/16 ip4:52.100.0.0/15 ip4:52.102.0.0/16 ip4:52.103.0.0/17 ip4:104.47.0.0/17 ip6:2a01:111:f400::/48 ip6:2a01:111:f403::/49 ip6:2a01:111:f403:8000::/51 ip6:2a01:111:f403:c000::/51 ip6:2a01:111:f403:f000::/52 ip4:167.89.0.0/17 ip4:208.117.48.0/20 ip4:50.31.32.0/19 ip4:198.37.144.0/20 ip4:198.21.0.0/21 ip4:192.254.112.0/20 ip4:168.245.0.0/17 ip4:149.72.0.0/16 ip4:159.183.0.0/16 ip4:223.165.113.0/24 ip4:223.165.115.0/24 ip4:223.165.118.0/23 ip4:223.165.120.0/23 ip4:103.151.192.0/23 ip4:185.12.80.0/22 ip4:188.172.128.0/20 ip4:192.161.144.0/20 ip4:216.198.0.0/18 ip4:74.63.218.226 ip4:216.75.6.200 ip4:64.31.50.128/25 ip4:63.143.55.128/25 ip4:69.162.99.140 ip4:64.31.8.108 ip4:64.31.8.114 ip4:64.79.65.180 ip4:198.2.128.0/24 ip4:198.2.132.0/22 ip4:198.2.136.0/23 ip4:198.2.145.0/24 ip4:198.2.186.0/23 ip4:205.201.131.128/25 ip4:205.201.134.128/25 ip4:205.201.136.0/23 ip4:205.201.139.0/24 ip4:198.2.177.0/24 ip4:198.2.178.0/23 ip4:198.2.180.0/24 ip4:209.61.151.0/24 ip4:166.78.68.0/22 ip4:198.61.254.0/23 ip4:192.237.158.0/23 ip4:23.253.182.0/23 ip4:104.130.96.0/28 ip4:146.20.113.0/24 ip4:146.20.191.0/24 ip4:159.135.224.0/20 ip4:69.72.32.0/20 ip4:104.130.122.0/23 ip4:146.20.112.0/26 ip4:161.38.192.0/20 ip4:143.55.224.0/21 ip4:143.55.232.0/22 ip4:159.112.240.0/20 ip4:198.244.48.0/20 ip4:204.220.168.0/21 ip4:204.220.176.0/20 ip4:141.193.32.0/23 ip4:159.135.140.80/29 ip4:159.135.132.128/25 ip4:161.38.204.0/22 ip4:87.253.232.0/21 ip4:185.189.236.0/22 ip4:185.211.120.0/22 ip4:185.250.236.0/22 ip4:143.55.236.0/22 ip4:198.244.60.0/22 ip4:204.220.160.0/21 ip4:192.64.236.0/24 ip4:192.64.237.0/24 ip4:192.64.238.0/24 ip4:163.47.180.0/23 ip4:34.202.239.6 ip4:54.221.227.204 ip4:18.234.1.244 ip4:44.209.42.157 ip4:192.40.160.0/19 ip4:74.91.80.0/20 ip4:161.199.13.0/24 ip4:192.133.16.0/24 ip4:192.82.209.0/24 ip4:161.199.112.0/24 ip4:38.111.1.0/24 ip4:65.144.119.0/24 ip4:146.20.113.101 ip4:146.20.113.144 ip4:146.20.113.217 ip4:156.70.24.139 ip4:156.70.25.163 -all

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

DMARC Record Quarantine

v=DMARC1; p=quarantine; rua=mailto:dmarc-reports@aclu.org,mailto:dmarc_rua@emaildefense.proofpoint.com,mailto:7d92737083674caeb08429312351cce1@dmarc-reports.cloudflare.net,mailto:dmarc_agg@dmarc.250ok.net;

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

DKIM Found

DKIM signatures were detected for aclu.org, confirming that this domain cryptographically signs outgoing emails.

Authentication Summary: aclu.org has full email authentication configured with SPF, DMARC, and DKIM. This provides strong protection against email spoofing and phishing. Emails sent from this domain are well-authenticated and likely to have high deliverability.

WHOIS & Domain Information

Registration Details

Domain
aclu.org
TLD
.org
Created
1991-06-30
Updated
2025-06-11
Expires
2026-06-29
Domain Age
34 years

Registrar

Name
Cloudflare, Inc.
IANA ID
1910

Registrant Contact

Name
DATA REDACTED
Organization
DATA REDACTED
Location
DATA REDACTED, NY, UNITED STATES

Technical Contact

Name
DATA REDACTED
Organization
DATA REDACTED
Location
DATA REDACTED, DATA REDACTED, UNITED STATES

Name Servers

  • apollo.ns.cloudflare.com
  • katelyn.ns.cloudflare.com

How to Verify aclu.org Email Addresses

Need to check if an email address at aclu.org actually exists before you send to it? BulkEmailChecker performs deep SMTP-level validation, connecting directly to aclu.org'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 aclu.org Email
Use BulkEmailChecker's free email verification tool to instantly validate any aclu.org 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 aclu.org Emails in Bulk
Have a mailing list full of aclu.org 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 aclu.org Emails via API in Real-Time
Building a signup form, CRM integration, or lead capture system? BulkEmailChecker's real-time verification API validates aclu.org 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

The fastest and most accurate way to verify a aclu.org 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 aclu.org'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 aclu.org 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 aclu.org 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 aclu.org 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.

Related Domains

cboe.com
Cboe Global Markets
corporate
hp.com
HP Inc.
corporate
pinterest.com
Pinterest Inc.
corporate
pernod-ricard.com
Pernod Ricard
corporate
gibsondunn.com
Gibson Dunn and Crutcher
corporate
nasdaq.com
Nasdaq Inc.
corporate
square.com
Block Inc.
corporate
microsoft.com
Microsoft Corporation
corporate
Browse all Corporate Email domains

Need to Verify More @aclu.org Emails?

Verify any email address instantly for deliverability, catch-all detection, and inbox verification.

Free @aclu.org Checker View Bulk Pricing
No Credit Card Required 99.7% Accuracy Real-time API Available
ISO 27001 Security Certified
SOC 2 Type II Auditor Verified
GDPR Fully Compliant
CCPA Privacy Ready
HIPAA Healthcare Ready
AES-256 Encryption