WebNov 7, 2015 · header.d=none;marriott.com; dmarc=none action=none ... Received-SPF: Fail (protection.outlook.com: domain of (my domain) does not designate (exchange servers ip address )as permitted sender) This thread is locked. You can follow the question or vote as helpful, but you cannot reply to this thread. I have the same question (93) … WebJan 2, 2024 · 6. DNS outage / DNS downtime. This is a common reason for authentication failures including DKIM fail. DNS outage may occur due to a variety of reasons including denial of service attacks. Routine maintenance of your name server may also be the reason behind a DNS downtime.
Delivery Failure Reason: 601 Attempted to send the message to the
WebApr 12, 2016 · The reason for the DMARC fail on SPF policy (fail) despite the SPF check passing (pass) is that your SMTP "mailFrom" (envelope MAIL From or RFC 5321.MailFrom) & your header "From" fields are out of alignment.I can't be sure from the extract you posted, but it's the likely answer. e.g. … WebMay 10, 2024 · It looks like you may have some spoofed received headers: Received: from bouttecontour.cloud (195.58.39.136) looks like genuine injection to O365 at Tue, 10 May 2024 02:17:36 +0000 But the Received headers below that have a time disconnect and seem to show internal O365 processing BEFORE the injection. cyberfox multiple browser
How to set up a DMARC for emails - Cloudflare Community
WebOct 24, 2015 · Authentication-Results: spf=permerror (sender IP is X.X.X.X) smtp.mailfrom=XXXXXX.com.au; XXXXXX.com.au; dkim=none (message not signed) header.d=none;XXXXXX.com.au; dmarc=none action=none header.from=XXXXXX.com.au; Received-SPF: PermError (protection.outlook.com: … WebSep 23, 2024 · header.d= ;; dmarc=none action=none header.from= WebApr 23, 2024 · Here is an example of an email that failed Implicit Authentication: authentication-results: spf=pass (sender IP is 63.143.57.146) smtp.mailfrom=email.clickdimensions.com; dkim=pass … cyberfox linux