Hi everyone, I accidentally removed the first post (don’t ask how or why pls 
), so I’m putting it back here:
I’ve been running a workflow for 2 days where I fetch emails from a Google Sheet node and send them via the Email Send node (Zoho is my provider). Each row from the sheet should trigger exactly one email.
The problem is that, on the first day, Zoho showed some emails being sent twice at the exact same time, with different message IDs. For the first node (Info), the first two emails were sent correctly, but the subsequent ones were duplicated. For the second node (Prenotazione), everything worked perfectly. The execution log shows one run per row, so there’s no duplication visible there.
I initially thought it was isolated because when I tested the workflow with a sheet containing only my own emails, everything worked fine — one email per row as expected. I left it overnight to see if it would stabilize, but this morning, both nodes started sending duplicate emails again.
Has anyone experienced similar behavior? Could this be an issue with the Email Send node itself, or something on Zoho’s side? Any guidance on debugging or preventing these duplicate sends would be greatly appreciated.