What’s going on with Chilkat support today…. 1. Encountered SMTP response of “503: Bad sequence of commands”.   This happened when attempting to use STARTTLS on a server where STARTTLS was not enabled.  The port in use is 587, which is the traditional SMTP port for explicit TLS.  (Explicit TLS is where the initial connection is simply TCP (non-SSL/TLS), the … Continue reading Chilkat 13-Dec-2021 — PDF Signature not Visible in Chrome or Microsoft Edge