telmex.com - Email Domain Verification & Deliverability Report

Active ISP Email Provider
Organization: Telmex
Mail Server: Proofpoint
Verified 3 days ago

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

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MX Records for telmex.com

PriorityMail ServerIP Address
10 mxb-008e1c01.gslb.pphosted.com 205.220.178.229
10 mxa-008e1c01.gslb.pphosted.com 205.220.167.95
SMTP Status: Responding
SMTP Banner:
220 mx0b-008e1c01.pphosted.com ESMTP mfa-m0395214

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

Email Authentication for telmex.com

SPF Record Pass

v=spf1 mx:telmex.com a:outbound.telmex.com ip4:200.57.138.137/32 ip4:200.57.129.32/27 include:asesorsolar.com.mx include:spf.protection.outlook.com include:rp.oracleemaildelivery.com -all
Authorized Senders:
asesorsolar.com.mx spf.protection.outlook.com rp.oracleemaildelivery.com

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

DMARC Record None

v=DMARC1; p=none; rua=mailto:dmarc_rua@emaildefense.proofpoint.com,mailto:dmarc@telmex.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com

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: telmex.com 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
telmex.com
TLD
.com
Created
1999-12-01
Updated
2025-11-10
Expires
2026-12-01
Domain Age
26 years

Registrar

Name
Network Solutions, LLC
IANA ID
2

Registrant Contact

Name
Registrant Street: Parque Via 198, Col. Cuauhtemoc
Location
Mexico, DF, MEXICO

Technical Contact

Name
Martinez Flores, Francisco
Location
MEXICO

Name Servers

  • NS9.TELMEX.COM
  • NS8.TELMEX.COM
  • NS10.TELMEX.COM

About telmex.com

telmex.com is the corporate email domain for Telmex (Telefonos de Mexico), Mexico's largest fixed-line telecommunications company and part of America Movil. Telmex provides broadband internet (Infinitum), phone, and data services across Mexico. The telmex.com domain is used for corporate communications and email services.

telmex.com supports robust SPF, DKIM, and DMARC authentication through Telmex enterprise infrastructure. As Mexico's dominant telecom, Telmex enforces strict authentication standards.

The telmex.com mail servers perform thorough recipient validation and apply enterprise-grade spam filtering.

For delivery to telmex.com, authenticate with SPF and DKIM, maintain a positive sender reputation, and comply with Mexican data protection law (LFPDPPP).

How to Verify telmex.com Email Addresses

Need to check if an email address at telmex.com actually exists before you send to it? BulkEmailChecker performs deep SMTP-level validation, connecting directly to telmex.com'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 telmex.com Email
Use BulkEmailChecker's free email verification tool to instantly validate any telmex.com 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.

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Verify telmex.com Emails via API in Real-Time
Building a signup form, CRM integration, or lead capture system? BulkEmailChecker's real-time verification API validates telmex.com 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, telmex.com is a valid email domain operated by Telmex, Mexico's largest telecommunications company and part of the America Movil group.
No, telmex.com is not a disposable or temporary email service. It is a permanent email domain operated by Telmex, Mexico's premier telecommunications provider.
telmex.com uses mail servers managed by Telmex enterprise infrastructure. The MX records direct inbound email to Telmex-operated gateways with comprehensive filtering.
You can send marketing emails to telmex.com addresses with valid opt-in consent. Authenticate with SPF and DKIM, comply with Mexican data protection law (LFPDPPP), and provide clear unsubscribe options.
You can verify a telmex.com email address using an email verification service that checks MX records and performs SMTP-level validation to confirm the mailbox is active.
The fastest and most accurate way to verify a telmex.com 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 telmex.com'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 telmex.com 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 telmex.com 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 telmex.com 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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