Email Security

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Hello all, hope you can help me to get a bit further in this case. Version 16 of the ESA Cluster. So i have implemeted DMARC / DKIM /SPF  from internal mails which sended in our SPF IPs hosts. Currently to check as we have it as new feature with none...

Hello,People can send me emails sometime and I can see that TLS 1.3 was in place, some time same sender is not able to send me email  and get this bounce back alert"The following message to *@domain.com was undeliverable.The reason for the problem:5....

KhanSb by Level 1
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  • 3 replies
  • 0 Helpful votes

Hello @All,This question has been asked before. However, the proposed solution does not seem to work.https://community.cisco.com/t5/email-security/custom-bounce-message/td-p/5136251If the "bounce()" action is triggered via a message filter, this text...

Anyone with an NMLS ID is required to display them prominently in their email.  Our employees have it embedded in their signature line similar to this:<NAME> | <TITLE>NMLS ID #########P: (###) ###-#### F: (###) ###-####email@address.netThis is causin...

clibby1 by Level 1
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  • 4 replies
  • 0 Helpful votes

We have received 100s of infected SVG files, and have blocked emails with SVG attachments. We do have two departments who use the files for legitimate reasons, but I don't feel safe allowing them to even a few people if the risk remains high (I've ev...