tds.net - Email Domain Verification & Deliverability Report

Active ISP Email Provider
Organization: TDS Telecom
Mail Server: tds.net
Verified 3 days ago

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

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MX Records for tds.net

PriorityMail ServerIP Address
10 mx.tds.net 129.159.64.89
SMTP Status: Responding
SMTP Banner:
220 2.0.0 mx.tds.net ESMTP ecelerity 4.8.0.74062 r(msys-ecelerity:tags/4.8.0-ga^0) Wed, 11 Mar 2026 01:10:26 -0400

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

Email Authentication for tds.net

SPF Record Pass

v=spf1 ip4:216.170.158.128/25 ip4:216.170.157.128/25 ip4:216.170.231.0/24 ip4:204.246.1.0/24 ip4:152.144.128.0/24 ip4:63.240.89.0/24 ip4:69.128.76.0/22 ip4:69.128.72.30/31 ip4:69.128.79.137 ip4:69.128.79.171 ip4:69.128.233.224 ip4:69.128.233.131 ip4:69.128.235.161 ip4:69.128.235.139 include:aspmx.googlemail.com include:_spf.tds.syn-alias.com include:cust-spf.exacttarget.com ~all
Authorized Senders:
aspmx.googlemail.com _spf.tds.syn-alias.com cust-spf.exacttarget.com

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

DMARC Record None

v=DMARC1; p=none; rua=mailto:telecom-postmaster@tdstelecom.com; ruf=mailto:telecom-postmaster@tdstelecom.com; sp=none; fo=1; ri=86400

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: tds.net 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
tds.net
TLD
.net
Created
1995-07-07
Updated
2026-02-09
Expires
2026-07-06
Domain Age
30 years

Registrar

Name
CSC Corporate Domains, Inc.
IANA ID
299

Registrant Contact

Organization
Telephone and Data Systems, Inc.
Location
WI, UNITED STATES

Name Servers

  • D.DNS.TDS.NET
  • E.DNS.TDS.NET
  • C.DNS.TDS.NET
  • B.DNS.TDS.NET
  • F.DNS.TDS.NET
  • A.DNS.TDS.NET

About tds.net

tds.net is the email domain for TDS Telecom (Telephone and Data Systems), a US telecommunications company providing broadband internet, phone, and TV services across multiple states. TDS serves both urban and rural communities, offering email accounts to its broadband subscribers.

tds.net supports SPF records for sender authentication. DKIM and DMARC configurations follow standard US telecom practices. Proper authentication is recommended for delivery.

The tds.net mail servers validate recipients during SMTP sessions and apply standard anti-spam filtering.

For delivery to tds.net, authenticate with SPF and DKIM, maintain clean lists, and comply with CAN-SPAM.

How to Verify tds.net Email Addresses

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Verify tds.net Emails via API in Real-Time
Building a signup form, CRM integration, or lead capture system? BulkEmailChecker's real-time verification API validates tds.net 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, tds.net is a valid email domain operated by TDS Telecom (Telephone and Data Systems), a US telecom serving broadband customers across multiple states.
No, tds.net is not a disposable or temporary email service. It is a permanent ISP email domain provided by TDS Telecom to its broadband subscribers.
tds.net uses mail servers managed by TDS Telecom infrastructure. The MX records direct inbound email to TDS gateways for filtering and delivery.
You can send marketing emails to tds.net addresses with valid opt-in consent. Authenticate with SPF and DKIM, comply with CAN-SPAM, and maintain low complaint rates.
You can verify a tds.net 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 tds.net 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 tds.net'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 tds.net 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 tds.net 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 tds.net 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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