Hi Vestuto Scanner,
Based on your testing, the phrase “Attached Scan Data” appears to be contributing to how this device‑generated message is being evaluated. Since the message shows up in Sent Items, the printer is likely submitting the email successfully, but it may then be filtered after submission because it looks like a very low‑context, automated message.
Also, the absence of a bounce‑back or NDR does not always mean the message was accepted by the final recipient. In some cases, automated or low‑trust device mail can be silently dropped without generating an error.
Please try the following, in order:
- Change the scanner’s default body text from “Attached Scan Data” to something more specific, for example: “Scanned document attached from Epson WF‑4833.”
- Set a clear subject line, such as: “Scanned document from WF‑4833”
- Test delivery to:
- your own Outlook mailbox
- at least one external mailbox
- Recheck the printer’s SMTP settings for the Outlook account being used.
- If the Outlook account has two‑step verification enabled, try using an app password for the printer.
- If this is a custom domain account hosted on Microsoft 365 (rather than Outlook.com / Hotmail / Live), also verify that SPF and DKIM are configured correctly, as missing or incorrect authentication can cause device‑generated emails with attachments to be filtered more aggressively.
At this stage, I wouldn’t rule out “Attached Scan Data” as a factor in this case, but it’s more likely being evaluated as part of a broader low‑trust or automated‑message filtering pattern rather than as a blocked phrase by itself.
To help narrow this down further, please let me know:
- whether this is a personal Outlook.com/Hotmail/Live account or a custom domain (work or school) account
- whether delivery fails for all recipients or only certain domains
- whether any bounce or NDR is returned
Please let me know if this proves useful to you, or if you would like further assistance.
Looking forward to your update so we can continue from there.
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