System Administration Guide: Network Services

Additional MAX Macros From Version 8.12 of sendmail

Use the following macros to configure the maximum number of commands that can be received before sendmail slows its delivery. You can set these MAX macros at compile time. The maximum values in the following table also represent the current default values.

Table 14–23 Additional MAX Macros

Macro 

Maximum Value 

Commands Checked by Each Macro 

MAXBADCOMMANDS

25 

Unknown commands 

MAXNOOPCOMMANDS

20 

NOOP, VERB, ONEX, XUSR

MAXHELOCOMMANDS

HELO, EHLO

MAXVRFYCOMMANDS

VRFY, EXPN

MAXETRNCOMMANDS

ETRN


Note –

You can disable a macro's check by setting the macro's value to zero.