This article applies to:
- Trustwave MailMarshal (SEG)
Symptoms:
- Messages with more than 250 recipients are rejected with Error: '452 Too many recipients'.
Causes:
MailMarshal has a default limit of 250 recipients and rejects recipients past this limit. In most cases, the first 250 messages will be delivered and the rest will fail temporarily. The sending server will resume delivery for the next 250 recipients after a predefined period of time.
Resolution:
To adjust the default limit, you can change a setting in the user interface. After changing the setting, commit configuration.
MailMarshal SMTP 10.X
- In the Management Interface, navigate to System Configuration | Trustwave SEG Properties | Array Properties
- Under Receiver Properties, select Advanced.
- In the "max inbound" and/or "max outbound" fields, enter the maximum number of recipients as required.
MailMarshal SMTP 6.5 through 8.2
- In the Configurator, navigate to Tools | MailMarshal Properties.
- Under Receiver Properties, select Advanced.
- In the "max inbound" and/or "max outbound" fields, enter the maximum number of recipients as required.
- This article was previously published as:
- NETIQKB29300
- Marshal KB248