ciudad.com.ar - Email Domain Verification & Deliverability Report

Active ISP Email Provider
Organization: Ciudad Internet
Mail Server: Microsoft 365
Verified 5 days ago

Real-time verification data for ciudad.com.ar. View MX records, SPF/DKIM/DMARC authentication, and server deliverability status.

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MX Records for ciudad.com.ar

PriorityMail ServerIP Address
0 ciudad-com-ar.mail.protection.outlook.com 52.101.41.6
SMTP Status: Responding
SMTP Banner:
220 CY4PEPF0000EDD0.mail.protection.outlook.com Microsoft ESMTP MAIL Service ready at Wed, 11 Mar 2026 10:15:06 +0000 [08DE79DCE6277989]

ciudad.com.ar uses Microsoft 365 mail servers, which means emails are processed through Microsoft 365 infrastructure with their built-in spam filtering and security controls.

Email Authentication for ciudad.com.ar

SPF Record Pass

v=spf1 ip4:200.42.138.128/25 ip4:200.42.97.0/24 ip4:201.212.4.0/25 include:spf.protection.outlook.com include:_spf.embluemail.com -all
Authorized Senders:
spf.protection.outlook.com _spf.embluemail.com

SPF (Sender Policy Framework) specifies which mail servers are authorized to send email on behalf of ciudad.com.ar.

DMARC Record Quarantine

v=DMARC1; p=quarantine; pct=50; rua=mailto:3yis5haq@ag.dmarcian.com,mailto:unix@ciudad.com.ar,mailto:postmaster@ciudad.com.ar; ruf=mailto:unix@ciudad.com.ar;

Policy applied to: 50% of emails

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

DKIM Found

DKIM signatures were detected for ciudad.com.ar, confirming that this domain cryptographically signs outgoing emails.

Authentication Summary: ciudad.com.ar 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
ciudad.com.ar
TLD
.ar
Created
2014-03-18
Updated
2025-02-19
Expires
2026-03-18
Domain Age
11 years

Registrar

Name
ARTE RADIOTELEVISIVO ARGENTINO S A

Name Servers

  • lisa.ns.cloudflare.com
  • newt.ns.cloudflare.com

About ciudad.com.ar

ciudad.com.ar is the email domain for Ciudad Internet, an Argentine internet service provider. Ciudad Internet was one of the major dial-up and broadband providers in Argentina, and the ciudad.com.ar email domain continues to serve legacy subscribers within the Argentine telecommunications ecosystem.

ciudad.com.ar supports SPF records for sender authentication. DKIM and DMARC configurations follow standard Argentine ISP practices. Proper authentication alignment helps ensure delivery to ciudad.com.ar inboxes.

The ciudad.com.ar mail servers perform recipient validation during SMTP sessions, rejecting invalid addresses. Anti-spam filtering includes reputation checks and content analysis before messages are accepted for delivery.

For delivery to ciudad.com.ar, authenticate with SPF and DKIM, maintain clean lists, and comply with Argentine data protection law (Ley 25.326) when sending commercial email communications.

How to Verify ciudad.com.ar Email Addresses

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Verify a Single ciudad.com.ar Email
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Verify ciudad.com.ar Emails via API in Real-Time
Building a signup form, CRM integration, or lead capture system? BulkEmailChecker's real-time verification API validates ciudad.com.ar 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, ciudad.com.ar is a valid email domain originally operated by Ciudad Internet, an Argentine ISP. Legacy email accounts remain active within Argentine telecom infrastructure.
No, ciudad.com.ar is not a disposable or temporary email service. It is a permanent ISP email domain that served Ciudad Internet subscribers in Argentina.
ciudad.com.ar uses mail servers within Argentine telecommunications infrastructure. The MX records direct inbound email to gateways handling filtering and delivery for legacy accounts.
You can send marketing emails to ciudad.com.ar addresses with valid opt-in consent. Authenticate with SPF and DKIM, comply with Argentine data protection regulations, and provide clear unsubscribe options.
You can verify a ciudad.com.ar email address using an email verification service that checks MX records and performs SMTP-level validation to confirm the address is deliverable.
The fastest and most accurate way to verify a ciudad.com.ar 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 ciudad.com.ar'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 ciudad.com.ar 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 ciudad.com.ar 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 ciudad.com.ar 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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