Perform a technical SMTP lookup of any @mail.de recipient to confirm mailbox existence without sending a single message.
Enter an email address below to run a real-time verification via our primary 16-point engine.
Need to verify a full list? Click here.We verify the MX record configuration for Mail.de to ensure the recipient infrastructure is active and capable of receiving external traffic.
Our cluster simulates an SMTP delivery attempt to @mail.de. If the mailbox is full, disabled, or non-existent, our engine flags it instantly.
Cleaning your Email Provider leads through our 16-point engine reduces bounce rates by up to 98%, keeping your sender IP off global blacklists.
Yes. Our process is non-intrusive. We use a technical SMTP handshake to communicate with Mail.de servers without ever sending a real message to the recipient.
Our 16-point engine is optimized for Email Provider domain protocols, delivering 98% accuracy by detecting if the mailbox exists and can receive email.
Absolutely. You can upload a CSV or Excel spreadsheet containing thousands of @mail.de addresses to our list cleaning tool for instant processing.
Get started with 100 free verification credits.
Join Now & Get 100 Free Credits