Understanding Spambrella Mail Flow
Situation – You want to know the mail flow to better understand the path each message follows, and what events may be triggered at specific points during the process.
Solution – Email through the platform is processed step by step.
Spambrella Mail Flow
Messages processed through Spambrella go through various stages in a particular order which is outlined below for both inbound and outbound.
Inbound Mail Flow
- PDR – Proofpoint Dynamic Reputation.
- CSI – Cloudmark Sender Intelligence.
- DNS validity checks (Inbound Sender DNS check)
- Attachment Defense (if licensed).
- Anti-Virus scanning.
- Anti-Spoofing scan (DMARC, DKIM, and SPF)
- Filters: Custom filters and send lists.
- Executables blocked by default: .exe, .dll, .bat, .js, and others are blocked before custom filters.
NOTE: Any filter that triggers with Quarantine or Allow will skip the Anti-Spam step of processing.
- Anti-Spam.
- URL Defense Scan and Rewrites (if licensed).
Outbound Mail Flow
- Attachment Defense (if licensed).
- Anti-Virus scanning**
- Filters: Custom filters and send lists
- Executables such as .exe, .dll, .bat, .js, and others are blocked before custom filters.
- Anti-Spam.
NOTE: ** VIRUS: Any message blocked as ‘Virus’ cannot be released by Customers or Spambrella. Once detected as a Virus, no further action can be taken on the message. If you feel a message was flagged in error, please provide a permalink to it in a support ticket for review.
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