Domain Intelligence
Last Updated:
Predialnet.com.br
Safe to Send
Predialnet.com.br is operated by PredialNet. The domain runs 1 mail exchange and SMTP is responsive, with all three authentication standards in force.
Safe to Send
RISK
10
/100
Low
Verify Mailbox
Verify @predialnet.com.br emails
Live SMTP handshake against predialnet.com.br mail servers. No email is sent. 10 free per day, no signup.
Trusted by 400,000+ senders
4.9/5
From 8,500+ verified reviews
The risk score saves my team probably an hour a day in manual prospect research. We sort outreach lists by it and skip anything in the high-risk band. Bounce rate is the lowest it's ever been. Lisa Fonseca · SDR Team Lead
SOC 2 Type II
GDPR
CCPA
99.7% Accuracy
Disposable
No
Persistent addresses, not throwaway
SMTP Live
Yes
Mail server responds to SMTP handshake
MX Records
1
Mail exchangers
Mail Exchange (MX) Records for predialnet.com.br Mail Exchange records. They tell other mail servers which hosts are responsible for receiving email at this domain, in priority order. Lower priority numbers are tried first.
#10
mail.pnet-mail.com.br 189.1.139.140
Reachable
SMTP Handshake
Simple Mail Transfer Protocol. We open a live SMTP connection to the primary MX and read the greeting banner. A response confirms the mail server is alive and accepting connections.
Responsive
BANNER220 mail.pnet-mail.com.br (r1v3) ESMTP
Primary mail server accepted SMTP connection and returned a banner during the live audit.
predialnet.com.br Email Authentication SPF · DKIM · DMARC
SPF
Sender Policy Framework. A DNS record listing which servers are allowed to send mail for this domain. Receivers reject or flag mail from unauthorized servers.
Pass
TXTv=spf1 ip4:189.1.139.128/25 ~all
Authorized senders are defined and pass SPF policy.
DKIM
DomainKeys Identified Mail. The sending server cryptographically signs outbound mail with a private key, and receivers verify the signature using a public key in DNS.
Pass
SELECTORDetected via standard selectors
A DKIM signature was detected. Outbound mail from this domain can be cryptographically verified.
DMARC
Domain-based Message Authentication, Reporting & Conformance. Tells receivers what to do when SPF or DKIM checks fail: none, quarantine, or reject.
Reject
TXTv=DMARC1; p=reject; sp=reject; ruf=mailto:dmarc@predialnet.com.br; rua=mailto:dmarc@predialnet.com.br
Strict policy. Receivers are instructed to reject any mail that fails SPF or DKIM. The strongest available setting.
predialnet.com.br Domain Registration WHOIS · Nameservers · Registrar
Last UpdatedMarch 7, 2018
ExpiresApril 2, 2028
Age27 years
TLD.br
Authoritative Nameservers (2)
- ns1.predialnet.com.br
- ns2.predialnet.com.br
Registrant
NEW FRONTIER COMPUTERLAND
Technical Contact
PredialNET Informática LTDA.
core@predialnet.com.br·BRAZIL
About this Domain
About predialnet.com.br
predialnet.com.br is the email domain for Predialnet, a Brazilian internet service provider. Predialnet provides broadband internet and email services to customers in Brazil through its regional network infrastructure.
predialnet.com.br supports SPF records for sender authentication. DKIM and DMARC configurations follow standard Brazilian ISP practices. Proper authentication alignment is recommended for delivery.
The predialnet.com.br mail servers validate recipients at the SMTP level and apply anti-spam filtering including reputation checks and content analysis.
For delivery to predialnet.com.br, authenticate with SPF and DKIM, maintain clean lists, and comply with Brazil's LGPD data protection law for commercial email.
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Common Questions About predialnet.com.br
Is predialnet.com.br a disposable or temporary email provider?
No. predialnet.com.br is not a disposable email provider. It is classified as ISP Email Provider operated by PredialNet and addresses on predialnet.com.br are persistent rather than throwaway. Mail sent to a valid predialnet.com.br mailbox reaches a real recipient.
How do I verify if a predialnet.com.br email address is valid?
The fastest way to verify a predialnet.com.br email address is to use our free email checker. Enter any @predialnet.com.br mailbox at the top of this page and our system performs a real-time SMTP handshake against predialnet.com.br's mail servers, confirming whether the mailbox exists, is reachable, and is safe to send to. No email is ever delivered during the check.
Can I check if a predialnet.com.br email exists without sending a message?
Yes. Our real-time email verification API connects directly to predialnet.com.br's mail server, opens an SMTP session, and queries the mailbox using the RCPT TO command without ever transmitting an actual email. The server's response confirms whether the predialnet.com.br mailbox is valid, full, or non-existent. The recipient never receives anything and never sees the check.
What are the MX records for predialnet.com.br?
predialnet.com.br currently publishes 1 mail exchange (MX) record. The primary MX is mail.pnet-mail.com.br, which is the first server contacted when other mail systems try to deliver email to a predialnet.com.br address. The full list with priorities and IP addresses is in the MX Records panel above. MX records tell sending servers where to route email for predialnet.com.br.
Does predialnet.com.br use SPF, DKIM, and DMARC email authentication?
predialnet.com.br enforces all three email authentication standards: SPF, DKIM, and DMARC (policy: reject). This is the gold-standard configuration. It means receivers can verify that mail claiming to come from @predialnet.com.br is genuine, and predialnet.com.br's DMARC policy of 'reject' instructs receivers how to handle messages that fail those checks.
Why do emails to predialnet.com.br bounce or get blocked?
Bounces from predialnet.com.br usually fall into three buckets: the mailbox doesn't exist (5xx user unknown), the inbox is full, or your sending domain isn't authenticated to predialnet.com.br's satisfaction. The fastest fix is to run each address through a free email verifier before you send, and to make sure your own SPF, DKIM, and DMARC are configured correctly so predialnet.com.br's receivers trust you.
How can I verify a large list of predialnet.com.br email addresses?
Our bulk email verifier accepts CSV or TXT uploads with thousands or millions of predialnet.com.br addresses (or any mix of domains). Every address goes through 30+ checks including SMTP existence, predialnet.com.br catch-all detection, role-account detection, and disposable-domain matching. Results typically come back within minutes and previously-failed addresses on your blacklist are reprocessed for free. For continuous high-volume needs, see our unlimited email verification API.
Is it safe to accept signups from predialnet.com.br email addresses?
Yes, with normal hygiene. predialnet.com.br is a legitimate email service and signups from @predialnet.com.br behave like any other real user. Pipe each address through a real-time email verifier API at the moment of signup to catch typos and dead mailboxes, but there is no need to block predialnet.com.br by default.
What email format does predialnet.com.br use for usernames?
Most predialnet.com.br mailboxes follow common patterns like first.last@predialnet.com.br, firstinitiallast@predialnet.com.br, or first@predialnet.com.br, but the actual local-part rules depend on PredialNet. The only reliable way to confirm whether a specific @predialnet.com.br address exists is to run it through a free email verification tool. Guessing patterns will produce a high bounce rate and damage your sender reputation.
How is the predialnet.com.br risk score calculated?
The 0-to-100 risk score for predialnet.com.br combines disposable-domain classification, mail-server reachability, MX record presence and depth, SPF / DKIM / DMARC enforcement, DMARC policy strength, SMTP banner response, and domain age. Lower scores mean safer to send to. Disposable domains are pinned at the high end of the scale. The predialnet.com.br score is recomputed on every audit so it always reflects the live state of the domain.
Is predialnet.com.br a valid email domain?
Yes, predialnet.com.br is a valid email domain operated by Predialnet, a Brazilian internet service provider offering broadband and email services.
Is predialnet.com.br a disposable or temporary email service?
No, predialnet.com.br is not a disposable or temporary email service. It is a permanent ISP email domain provided by Predialnet to its broadband subscribers in Brazil.
What mail servers does predialnet.com.br use?
predialnet.com.br uses mail servers managed by Predialnet infrastructure in Brazil. The MX records direct inbound email to their gateways for filtering and delivery.
Can I send marketing emails to predialnet.com.br addresses?
You can send marketing emails to predialnet.com.br addresses with valid opt-in consent. Authenticate with SPF and DKIM, comply with Brazil's LGPD, and provide clear unsubscribe options.
How do I verify a predialnet.com.br email address?
You can verify a predialnet.com.br email address using an email verification service that checks MX records and performs SMTP-level validation to confirm the mailbox is active.