This article applies to:

• MailMarshal (SEG)
• Lotus Notes Email Client

Symptoms:

• Unable to receive e-mail from Lotus Notes servers.

• Recipient e-mail addresses containing '@domain' (suffix), '%' (percent sign), or '!' (exclamation point) are blocked by MailMarshal.
• Error: '501 Badly formatted mail from' is displayed in MailMarshal Receiver log.

Causes:

Information:

If this function is handled correctly by other servers in your environment and you wish to accept these messages, follow the steps below to configure MailMarshal appropriately:

1. In the MailMarshal configuration interface, navigate to Array Properties) | Receiver Properties | Host Validation. (Location may differ in earlier versions)
2. Uncheck:  Block suspicious local-part relay attempt.
3. Commit configuration changes.

This article was previously published as:

NETIQKB39918