Office 365 - Change Primary email to sharedinbox, make Press J to jump to the feed. In such cases, your email exchange service provider assigns a default DKIM signature to your outbound emails that don't align with the domain in your From header. I have set up SPF and DKIM, but the issue still arises. Shipping laptops & equipment to end users after they are Did you try turning SPF record: hard fail on, on the default SPAM filter. Return-Pathsupport@mail.example.jpsupport. Mail marked as spam - Microsoft Community MS puts useful information in the header that will give you a clue regarding the reason it was put in junk. are failing with a "compauth=fail reason=601". Whitelisting the messages as sent from your domain and from the allowed IPs, that would be a pretty solid rule. If you have any questions or needed further help on this issue, please feel free to post back. It might be a service they use. I mean that 601 isn't a status code that I've seen defined in any RFC for the SMTP protocol -- at least not any RFC that Exchange claims it follows. However, when a test email was sent, it still reports compauth=fail reason=601 and gets quarantined by our anti-phishing policy as a spoof email. Learn more. Phishing emails Fail SPF but Arrive in Inbox Authentication-Results: spf=pass (sender IP is 13.111.207.78) smtp.mailfrom=bounce.relay.corestream.com; mcneese.edu; dkim=none (message not signed) header.d=none;mcneese.edu; dmarc=none action=none header.from=mcneese.edu;compauth=fail reason=601 Adding a . For information about how to view an email message header in various email clients, see View internet message headers in Outlook. The receiving MTA fails to align the two domains, and hence . There was a time when Microsoft IGNORED an SPF hard-fail and treated it as a soft-fail, in spite of that box being checked. Authentication-results: Contains information about SPF, DKIM, and DMARC (email authentication) results. Do not add to the domain safelist in the anti-spam policy however, thats a bad idea. DMARC failed, but SPF pass - Server Fault Seriously!?!? reference. Checked and I don't see it as being blacklisted. You'll notice that the roadmap item was just added in the last 24 hours, and was immediately listed as "rolling out". The message was marked as non-spam prior to being processed by spam filtering. Freshdesk is sending emails directly (authenticated via SPF) to Office 365 mailboxes but they are consistently being delivered to the junk folder for all recipients. OR What is set for the MAIL FROM compared to the FROM:? Bryce (IBM) about building a "Giant Brain," which they eventually did (Read more HERE.) I've done that already (see headers in other reply) and it's still happening. A higher value indicates the message is more likely to be spam. Here is an official document introduces aboutAnti-spoofing protection in Office 365for your Help troubleshooting why own email ended up in Junk The message was identified as bulk email by spam filtering and the bulk complaint level (BCL) threshold. 1. 001 means the message failed implicit email authentication; the sending domain did not have email authentication records published, or if they did, they had a weaker failure policy (SPF soft . For more information, see What policy applies when multiple protection methods and detection scans run on your email. For example, the message was marked as SCL 5 to 9 by a mail flow rule. DKIM signature fail - Microsoft Community Hub Get a complete analysis of compauth.fail.reason.001 the check if the website is legit or scam. For more information about how admins can manage a user's Safe Senders list, see Configure junk email settings on Exchange Online mailboxes. -Lastly, compauth=fail reason=601 Received-SPF: None (protection.outlook.com: eu-smtp-1.mimecast.com does not designate permitted sender hosts) Also, since the SENDER is reporting the error they should be able to tell you which MTA it was that sent that status code. are you having this problem all the time or just with this client? I recently started as a remote manager at a company in a growth cycle. Did you know you can try the features in Microsoft 365 Defender for Office 365 Plan 2 for free? See the last link I posted above to run the best practices analyzer for your tenant. Here is the contents of the email the client gets: Use "get-receiveconnector" for a list of all the connector names. Do you have any suggestions to mark these emails as spam/phishing/spoofed email and either block them or mark them as junk/send to quarantine? I'm not quite sure how to do this. Microsoft 365 Defender. I have checked the header but there are no clues as to what reason the email is classified as spam. Possible values include: Domain identified in the DKIM signature if any. The message was marked as spam by spam filtering. There will be multiple field and value pairs in this header separated by semicolons (;). DKIM. A critical event . A higher BCL indicates a bulk mail message is more likely to generate complaints (and is therefore more likely to be spam). For example: 000: The message failed explicit authentication (compauth=fail). compauth=fail reason=601 office 365 - fullpackcanva.com John changed his password and seems to have stopped worrying about it, but I don't think he's taking it anywhere near seriously enough. Anti-spam message headers - Office 365 | Microsoft Learn Email authentication in Microsoft 365 - Office 365 If I start to see legitimate emails being caught by Anti Spam (I have one last night from our helpdesk) do I create a transport rule to allow the email or just whitelist? (scrubbed of the actual domain). Why is DMARC Failing | EasyDMARC Wow that was lucky! (e.g d=domain.gappssmtp.com for Google & d=domain.onmicrosoft.com for Office365) - The default signing is NOT your domain. I can crank up a setting to send SPF fails into the fire in O365 > Security This means that the sending domain did not have email authentication records published, or if they did, they had a weaker failure policy (SPF soft fail or neutral, DMARC policy of p=none). I'm sorry, I don't know what you mean by this. Do suggestions above help? I mean that 601 isn't a status code that I've seen defined in any RFC for the SMTP protocol -- at least not any RFC that Exchange claims it follows. However, the email is not marked as spam and is ending up in our users inboxes. This is the domain that's queried for the public key. Google Workspace to Office 365 migration help. An inbound message may be flagged by multiple forms of protection and multiple detection scans. 001: The message failed implicit authentication (compauth=fail). Uses the From: domain as the basis of evaluation. Possible values include: 9.19: Domain impersonation. If you send from multiple IP addresses and domains, the compauth and reason values may differ from one campaign to another. I think, in your case, you've omitted the name of the server. (ie, not whitelisting ourdomain.com) I've whitelisted the campaign monitor domains, but they are still going to Junk. After you have the message header information, find the X-Forefront-Antispam-Report header. Messages classified by Microsoft as spoofed display a compauth=fail result. & Compliance > Threat Management > Policy > Anti-spam > Spoof intelligence Users should simply add to their safe sender lists in Outlook or OWA. How to set up a DMARC for emails - Cloudflare Community The sending user is attempting to impersonate a user in the recipient's organization, or, 9.25: First contact safety tip. Any changes to firewalls recently or did you introduce any spam software etc.? Is there a rule I can set to allow these through safely? For more information, see. Indicates the action taken by the spam filter based on the results of the DMARC check. I can't be sure from the extract you posted, but it's the likely answer. compauth.fail.reason.001 | URL Checker | Website Checker Otherwise, ensure they pass DMARC (Inlcude the sending IPs in your SPF record) with the aforementioned alignment and allow that based on FROM your domain and passing DMARC using a transport rule. DMARC and Microsoft : What is Happening? | EasyDMARC You can follow the question or vote as helpful, but you cannot reply to this thread. Microsoft Defender for Office 365 plan 1 and plan 2. Flashback: Back on November 3, 1937, Howard Aiken writes to J.W. Fields that aren't described in the table are used exclusively by the Microsoft anti-spam team for diagnostic purposes. Test retiring Exchange Server 2016 hybrid server? Email authentication (also known as email validation) is a group of standards that tries to stop spoofing (email messages from forged senders). tnsf@microsoft.com. 001 means the message failed implicit email authentication; the sending domain did not have email authentication records published, or if they did, they had a weaker failure policy (SPF soft . The language in which the message was written, as specified by the country code (for example, ru_RU for Russian). To see the X-header value for each ASF setting, see, The bulk complaint level (BCL) of the message. compauth=fail reason=001 Create an account to follow your favorite communities and start taking part in conversations. We (sender.org) provide a mail server for a client (example.org) and sign outgoing messages with our . log files they produce, too. How to use Everest to identify a message classifed as spoofed at