Domain Intelligence
Last Updated:
Bluemail.de
Proceed With Care
Bluemail.de is operated by Bluemail Germany. The domain runs 1 mail exchange and SMTP is responsive, with 1 of 3 authentication standards in place.
Proceed With Care
RISK
40
/100
Medium
Verify Mailbox
Verify @bluemail.de emails
Live SMTP handshake against bluemail.de 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
Catch-all detection alone has paid for the subscription. We were hemorrhaging credits at our previous verifier on catch-all domains that accepted the call but never bounced. Saved roughly $400 per month overnight. Brett Anderson · RevOps Manager
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 bluemail.de 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.
#5
smtpin.rzone.de 81.169.145.97
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 smtpin.rzone.de ESMTP RZmta 55.0.1 ready (mi91)
Primary mail server accepted SMTP connection and returned a banner during the live audit.
bluemail.de 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.
Missing
No SPF TXT record published for bluemail.de.
No valid SPF record was published. Receivers cannot confirm which servers are allowed to send mail for this domain.
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.
Missing
No DKIM signature detected on common selectors for bluemail.de.
No DKIM signature was detected. Receivers cannot verify the integrity of outbound mail.
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;
Strict policy. Receivers are instructed to reject any mail that fails SPF or DKIM. The strongest available setting.
bluemail.de Domain Registration WHOIS · Nameservers · Registrar
Last UpdatedOctober 21, 2007
TLD.de
Authoritative Nameservers (2)
- docks08.rzone.de
- shades03.rzone.de
About this Domain
About bluemail.de
bluemail.de is an email domain for Bluemail, a German email and internet service. Bluemail.de accounts are used by German internet users for personal email communication, with the service operating within Germany's telecommunications ecosystem.
bluemail.de publishes SPF records for sender validation. DKIM and DMARC configurations are maintained at standard levels for German email providers. Proper authentication alignment is important for reliable delivery to bluemail.de mailboxes.
The bluemail.de mail servers perform recipient verification during SMTP sessions, rejecting invalid addresses. Anti-spam filtering evaluates sender reputation, content quality, and authentication status before accepting messages for delivery.
For delivery to bluemail.de, authenticate with SPF and DKIM, maintain clean mailing lists, and comply with German telecommunications law (TKG) and EU GDPR requirements for commercial email communications.
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Common Questions About bluemail.de
Is bluemail.de a disposable or temporary email provider?
No. bluemail.de is not a disposable email provider. It is classified as ISP Email Provider operated by Bluemail Germany and addresses on bluemail.de are persistent rather than throwaway. Mail sent to a valid bluemail.de mailbox reaches a real recipient.
How do I verify if a bluemail.de email address is valid?
The fastest way to verify a bluemail.de email address is to use our free email checker. Enter any @bluemail.de mailbox at the top of this page and our system performs a real-time SMTP handshake against bluemail.de'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 bluemail.de email exists without sending a message?
Yes. Our real-time email verification API connects directly to bluemail.de'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 bluemail.de mailbox is valid, full, or non-existent. The recipient never receives anything and never sees the check.
What are the MX records for bluemail.de?
bluemail.de currently publishes 1 mail exchange (MX) record. The primary MX is smtpin.rzone.de, which is the first server contacted when other mail systems try to deliver email to a bluemail.de 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 bluemail.de.
Does bluemail.de use SPF, DKIM, and DMARC email authentication?
bluemail.de has 1 of the 3 standard email authentication records in place: DMARC (policy: reject). Adding the missing layer(s) would tighten anti-spoofing protection and improve deliverability for legitimate bluemail.de mail.
Why do emails to bluemail.de bounce or get blocked?
Bounces from bluemail.de 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 bluemail.de'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 bluemail.de's receivers trust you.
How can I verify a large list of bluemail.de email addresses?
Our bulk email verifier accepts CSV or TXT uploads with thousands or millions of bluemail.de addresses (or any mix of domains). Every address goes through 30+ checks including SMTP existence, bluemail.de 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 bluemail.de email addresses?
Yes, with normal hygiene. bluemail.de is a legitimate email service and signups from @bluemail.de 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 bluemail.de by default.
What email format does bluemail.de use for usernames?
Most bluemail.de mailboxes follow common patterns like first.last@bluemail.de, firstinitiallast@bluemail.de, or first@bluemail.de, but the actual local-part rules depend on Bluemail Germany. The only reliable way to confirm whether a specific @bluemail.de 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 bluemail.de risk score calculated?
The 0-to-100 risk score for bluemail.de 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 bluemail.de score is recomputed on every audit so it always reflects the live state of the domain.
Is bluemail.de a valid email domain?
Yes, bluemail.de is a valid email domain providing email services to German users. Email accounts on this domain are actively used for personal communication.
Is bluemail.de a disposable or temporary email service?
No, bluemail.de is not a disposable or temporary email service. It is a permanent email domain serving German internet users with ongoing email accounts.
What mail servers does bluemail.de use?
bluemail.de uses mail servers within German infrastructure. The MX records direct inbound email to mail gateways that handle filtering and delivery for bluemail.de accounts.
Can I send marketing emails to bluemail.de addresses?
You can send marketing emails to bluemail.de addresses with valid opt-in consent. Authenticate with SPF and DKIM, comply with German telecom regulations and GDPR, and honor unsubscribe requests.
How do I verify a bluemail.de email address?
You can verify a bluemail.de email address using an email verification service that checks MX records and performs SMTP-level mailbox validation to confirm deliverability.