ronh99 - The AVSIM Community La Banque Postale | Autre arnaque | 1 commentaire - Signal-Arnaques ated an incident for investigating this issue. header.from=groups.io;compauth=pass reason=109 The smtp.mailfrom it is showing you is the domain specified in the MAIL FROM command in the SMTP transaction when Groups.io's outbound server connected to your inbound server (aka the "envelope From"). D. -s to provide name of selector or key pair generated. The sender is getting a bounce message with the following content which appears to be from postmaster@outlook.com.Is the btinternet address using a Microsoft backend? I'm still working and setting up DMARC . Hybrid exchange mail loop - The Spiceworks Community Claim/service not covered by this payer/contractor. SPF headers. Eventually, if they want to reliably send to Office 365 customers, they'll need to fix their domain authentication problems. Thread-Index: Add6jM469/SP5bJYTFmDS+9vamgnqg== Date: Fri, 16 Jul 2021 21:55:51 +0000 Message-ID: Accept-Language: en-US . Reason Code: 109. ; Click on the mail flow section and then click the + sign in the right-hand area and select Create a new rule…; Give the rule a relevant name, such as Domain Spoof Prevention and then click on more options. Create Private and Public keys. osTicket is a widely-used and trusted open source support ticket system. SPF and DKIM are setup. O365 Mailbox -> Internet. Enter your SMTP username and password for the smarthost. They sent you greetings. Review the Composite Authentication charts below for more information about the results. Stephen Reynolds - AbuseIPDB User Profile After reviewing our records, due to our retention schedules, we are unable to provide information on 'Choose Life' plates back to 1997. DMARC=BestGuessPass - Word to the Wise Recently, a seemingly unsophisticated Office 365 phishing campaign caught our attention. Any SMTP gurus - strange mail header & phishing - Servers/Hosting Received-SPF: Pass (protection.outlook.com: domain of domain123.nl. Understanding the Anti-Spoofing technology in Exchange Online The below screenshots display a Microsoft 365 environment. Gmail. Received-SPF: TempError (protection.outlook.com: error in processing ... The attackers abused an Adobe Campaign redirection mechanism, using a Samsung . Scan to Email not sending as PDF - HP Support Community