Why a corrected email signature kept sending the old one

Published September 1, 2026

A signature record was patched, verified clean, and kept arriving in inboxes with its original content. Four attempts across two working sessions had corrected the wrong thing. The signature is stored in three columns. Insert Signature reads two of them, and every patch so far had written only the third, so the record read correct […]

In this series · Part 11 of 27

1Dynamics 365 CRM: API integration + change-control repo 2Dynamics 365 CRM: Last Contact Engagement tracking on Accounts 3Turning a sales-intelligence export into a clean CRM data model 4Dynamics 365 CRM: contacts inherit their company’s website, and emails timestamp by send time 5Your SEO health now lives as a dashboard inside the CRM 6Contact form duplicate detection now reads the request, not just the address 7Marketing list members now show engagement and account fit 8Campaign responses now create leads behind a confirmation step 9Three CRM automations passed their tests without running the code that had just changed 10A signature defect that three mailboxes agreed was not there 11Why a corrected email signature kept sending the old one 12A read-only CRM endpoint for scoring outside the desktop 13Choosing what runs the AI layer in the CRM sales process 14Asking whether a partner is involved, instead of inferring it 15An email step in the sales process can now be excused, not only sent 16The rehearsal that guards every process change had been failing silently 17A one to one email from a lead left the engagement record blank 18Two local dependencies, and only one was obvious 19Filing a generated document to the record automatically 20One meeting that served two process steps, recorded as two 21A setting that stored correctly, read back correctly, and was never in force 22Generating a product catalogue from one canonical file 23Three date fields that existed on every row, and had never once been written 24Unused, unreferenced, and still not safe to delete 25A measure that could not record early 26A sales automation that runs as itself, not as an administrator 27A stage change that was refused, and reported as a success

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A signature record was patched, verified clean, and kept arriving in inboxes with its original content. Four attempts across two working sessions had corrected the wrong thing.

The signature is stored in three columns. Insert Signature reads two of them, and every patch so far had written only the third, so the record read correct in every query and sent the old content.
Writing all three columns fixed it. The proof was a received message, not a read of the stored record: a stored copy looks self consistent either way, which is how the defect survived two earlier attempts.
The logos moved from inline base64 to hosted files. That removes about 55KB from every send and lets the two most clicked links carry campaign attribution.
A separate change to the signature card means an existing record now repositions its own card the next time someone opens and saves it, with no migration and no manual step.