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+# Session Log: Chris Knight Email Verification for Cascades
+
+## User
+- **User:** Howard Enos (howard)
+- **Machine:** Howard-Home
+- **Role:** tech
+
+## Session Summary
+
+Howard reported that the night person at Cascades (Chris Knight, Controller) sent him an email expressing concern about a suspicious sender. The task was to locate the email and verify whether it was legitimate.
+
+Initial search checked Mike's mailbox (incorrect assumption based on userEmail context hint). Howard corrected that his mailbox (howard@azcomputerguru.com) was the target. The email was found: Chris Knight forwarded "FW: Doc Package | Cascades Retirement Properties, Inc. | 106513" at 5:05pm MST (2026-07-18T00:05 UTC). The original email was from Michael Rosales (michael.rosales@smflus.com) at Sumitomo Mitsui Finance and Leasing, notifying Cascades that DocuSign loan documents were incoming with access code 106513.
+
+Full email header analysis and DNS verification of smflus.com confirmed legitimacy: enterprise Proofpoint MX, strict SPF (-all), two DocuSign TXT verification records on the domain, and the original email passed SPF/DKIM/DMARC at every hop. The only DKIM failure was at the final hop where INKY/GuruProtect modified the body to inject its banner (expected behavior). A response was drafted addressed directly to Chris Knight and sent to Howard's Discord for forwarding.
+
+## Key Decisions
+
+- Verified sender domain (smflus.com) via DNS rather than relying solely on email content -- MX, SPF, TXT (DocuSign verification), and DMARC records all checked.
+- Analyzed full email authentication headers (ARC chain i=1 through i=4) to distinguish legitimate authentication from INKY-induced DKIM body hash failure.
+- Drafted the response addressed to Chris Knight directly (second revision per Howard's request) so Howard could paste/forward it without editing.
+
+## Problems Encountered
+
+- Initially searched Mike's mailbox instead of Howard's. Howard corrected the target mailbox. The userEmail context hint showed mike@azcomputerguru.com but the operator was Howard.
+
+## Configuration Changes
+
+None.
+
+## Credentials & Secrets
+
+None.
+
+## Infrastructure & Servers
+
+- **smflus.com** (Sumitomo Mitsui Finance and Leasing Co., Ltd) -- verified legitimate domain
+  - MX: mxa-00207001.gslb.pphosted.com / mxb-00207001.gslb.pphosted.com (Proofpoint)
+  - SPF: v=spf1 ... include:spf.protection.outlook.com ... -all
+  - DocuSign TXT records: 166ffa57-bd88-4246-9c37-efb75e12b974, ae3fa0fb-54d0-40ff-961e-ce05dc6ff4d7
+  - Microsoft 365 verified: MS=ms11902861
+  - Contact: Michael Rosales, AVP Contract Associate, 929-505-2172
+
+## Commands & Outputs
+
+- Graph API mailbox search on howard@azcomputerguru.com for Chris Knight emails
+- DNS lookups (nslookup MX/TXT/A) on smflus.com
+- Discord DM sent to Howard with analysis (message IDs: 1527835894617210990, 1527836204223955146)
+
+## Pending / Incomplete Tasks
+
+- Howard to forward the analysis to Chris Knight at Cascades.
+- Chris Knight to watch for DocuSign email from @docusign.net with access code 106513.
+- Meredith Kuhn (CC'd on the forward) should also receive a separate DocuSign copy.
+
+## Reference Information
+
+- Chris Knight email: Chris.Knight@cascadestucson.com (Controller, 603-748-3571)
+- Meredith Kuhn: meredith.kuhn@cascadestucson.com
+- Michael Rosales: michael.rosales@smflus.com (AVP, Contract Associate, SMFL, 929-505-2172)
+- Syncro ticket #32559 (Bill.com payment -- separate, also legitimate)
+- SMFL address: 666 Third Avenue, 8th Floor, New York, NY 10017