Update n8n-nodes-base.sendemail.md #3684
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This PR updates the Send Email (SMTP) node documentation to include a limitation about email threading.
Currently, emails sent with this node do not appear in the same thread because the node does not support setting headers like In-Reply-To and References. This can cause each email to be treated as a new conversation in most email clients (e.g., Gmail, Outlook).
Changes
Added a Limitations section under the Send Email (SMTP) node docs.
Explained why threading does not work by default.
Added recommended workarounds: using the Gmail node’s Reply operation or community nodes that allow custom headers.