Sender and reply addresses
From, Sender, Return-Path and Reply-To appear as a clear list. Missing or conflicting information is explicitly identified.
Module in your Sendequelle account
Email forensics in your account
Understand who is named as the sender, which servers handled a message and which contacts can be established. Your private forensic report brings these details together in your account.
New sign-ins, trial accounts and orders are temporarily closed. The free checking tools are already available without an account.
What your forensic report explains
Sending hub and transport steps
The report explains identifiable steps from earlier relays to forwarding within the recipient network and highlights the last identifiable handoff. Header claims remain labelled as such.
Domain owner, network operator and abuse
You can optionally request public IP and domain registry lookups. Published owners, registrars, network operators and abuse contacts are shown separately; missing contacts are not guessed.
Authentication and account comparison
SPF, DKIM and DMARC information and differences from selected messages and approved references remain traceable. Our own checks, third-party claims and missing evidence are distinguished.
Analyze and compare within your account
After signing in, paste headers or upload a single EML, TXT or MSG file. Compare selected messages and approved reference profiles within the same organisation.
Analysis allowances, file sizes and retention depend on your account plan. Roles and access permissions apply to every report.
View account plans and allowancesPrivate reports for your organisation
Original files and results remain private and available only to authorized account users. Reports do not appear in search engines or public result lists. The forensics module contains no advertising or third-party tracking.
Your own test messages and recurring checks
The account module supports test addresses and recurring profiles. SMTP test reception requires a verified domain you own, explicit activation and operational approval of the receiving system. Your account shows its current operational state.
Your system sends the test message. Optional return reports are limited to previously confirmed destinations. Receipt at Sendequelle does not confirm delivery, inbox placement or reading at other recipients.