I would like to confirm whether both task emails and workflow emails use the same SMTP settings. If they do, could you please advise why, in the same environment, only task emails are working while workflow emails are not?
Yes, both task emails and workflow emails use the same SMTP settings. If only task emails are working, the issue is almost certainly with workflow email configuration (missing templates, workflow step misconfiguration, or user preferences) rather than the mail transport itself.
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