Enhanced SMTP status code · RFC 3463 · IANA
5.1.241 The message can't be delivered because the recipient is an HVE account
The recipient is an HVE account, which only sends and does not receive mail.
- Class: Permanent failure
Class 5: a permanent failure. Resending the same message will not help: something about the message, the sender or the destination must change (RFC 3463 §3.1).
- Subject: X.1 · Address
About the originator or destination address: syntax or validity. The sender can usually correct it and retry.
How 5.1.241 appears at providers
The exact text from the provider's documentation, as you see it in the bounce, and what it means.
Microsoft 365 / Exchange Online
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550 5.1.241
The message can't be delivered because the recipient is an HVE account. HVE accounts do not have associated mailboxes and can only send messages.
The recipient is an HVE account, which only sends and does not receive mail.
Have the whole error message?
Sources: RFC 5321 · RFC 3463 · RFC 3464 · IANA · Gmail · Microsoft 365 · read on 26 September 2026