Posts made by Oliver

• multi-level subdomain

  Hello Arron, Thank you very much for your support, I really appreciate it!I will test it out. Best regards,Oliver

  posted in Security Gateway

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  Oliver
  7/24/25, 3:27 PM
• multi-level subdomain

  I have just uploaded the file SG00996031.EML to you.

  posted in Security Gateway

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  Oliver
  7/23/25, 3:29 PM
• multi-level subdomain

  Hello Arron, Thank you for your reply. I have attached an excerpt from the spam email.The error message “DNS name contains an invalid character” is clearly visible here. This message ...

  posted in Security Gateway

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  Oliver
  7/23/25, 4:47 AM
• multi-level subdomain

  Hello everyone, Somehow, the flood of spam has increased significantly in recent days. This includes emails with multi-level subdomains such as 50127992706840200@igctwb.em.giftrush.christmas I'm ...

  posted in Security Gateway

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  Oliver
  7/22/25, 1:52 PM
• incorrect characters in email address

  Hello, Lately, I have been receiving more and more spam from an email address like the following Sender= Don=txt2create.com@lc.txt2create.com Don=txt2create.com@lc.txt2create.com on behalf of Don...

  posted in Security Gateway

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  Oliver
  7/22/25, 1:42 PM
• Mail is automatically moved to the Deleted Items folder.

  Hello Arron, Thank you for your suggestions. I didn't know where else to look on the server after I had already tested everything. With your answer, I was able to rule out the server as the sourc...

  posted in MDaemon

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  Oliver
  7/8/25, 11:29 AM
• Mail is automatically moved to the Deleted Items folder.

  Hello, I have a problem where messages from a specific sender appear briefly in the recipient's inbox and are automatically moved to the “Deleted Items” folder after a few seconds. Th...

  posted in MDaemon

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  Oliver
  7/8/25, 9:19 AM
• DMARC Problem

  @Arron does SecurityGateway support the ARC function?Can't find anything about this in the help.

  posted in Security Gateway

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  Oliver
  5/22/25, 12:15 PM
• DMARC Problem

  Many thanks for the quick answers! Sorry, it was actually the mail server behind it. I deactivated DMARC there and the message went through.

  posted in Security Gateway

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  Oliver
  5/22/25, 4:16 AM
• DMARC Problem

  Hello, I always get the result "Delivery failed" in the message log for the following mail I cannot find an error in the DMARC processing in the average.The sender is also on the whitelist ........

  posted in Security Gateway

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  Oliver
  5/21/25, 4:41 AM
• some mails are rejected because of pdf attachment

  @Arron thank you for the quick response. Would be great if this would work correctly in the future.

  posted in Security Gateway

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  Oliver
  4/28/25, 8:25 AM
• some mails are rejected because of pdf attachment

  @Arron any news?

  posted in Security Gateway

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  Oliver
  4/28/25, 8:02 AM
• some mails are rejected because of pdf attachment

  @Arron The fileman is sg_config-230425.xml 

  posted in Security Gateway

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  Oliver
  4/23/25, 8:02 AM
• some mails are rejected because of pdf attachment

  Hello, many messages with pdf attachment come through. However, some are rejected because of the pdf. Fri 2025-04-04 13:54:49: -- Execute from: Attachment Filtering --Fri 2025-04-04 13:54:49...

  posted in Security Gateway

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  Oliver
  4/23/25, 6:35 AM
• DKIM signature verification

  Adding it to the wish list would be great. Thank you!

  posted in Security Gateway

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  Oliver
  3/26/25, 2:15 PM
• DKIM signature verification

  And yet another phishing mail that has passed all the checks but has a faulty DKIM signature. However, this is not taken into account because the domain owner has not filed a DMARC. I don't underst...

  posted in Security Gateway

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  Oliver
  3/24/25, 8:40 AM
• DKIM signature verification

  However, the problem is if the owner of the domain has not configured DMARC. In this case, the message is allowed through in SG despite the incorrect DKIM signature, as the DMARC check fails becaus...

  posted in Security Gateway

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  Oliver
  3/18/25, 4:28 PM
• DKIM signature verification

  Hello, Lately I have been receiving more and more SPAM with false DKIM signatures. Unfortunately, I can't find an option in SG to reject mails with incorrect DKIM signatures. I would be grateful ...

  posted in Security Gateway

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  Oliver
  3/15/25, 2:37 PM
• Outbreak Protection not licensed

  Hello Matthew, I have already restarted the server several times. I am using the current version v10.5.2. The mail with the information has been sent to you. ThanksOliver

  posted in Security Gateway

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  Oliver
  1/16/25, 4:23 PM
• Outbreak Protection not licensed

  Hello, I found the following note in the message information:“Outbreak Protection: you are not licensed for the antispam or VOD service. Contact your service provider to enable the service.&...

  posted in Security Gateway

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  Oliver
  1/16/25, 4:02 PM