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System Administration Guide: Resource Management and Network Services

New MAX Macros

Use the following new 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 27-12 New MAX Macros

Macro 

Maximum Value 

Commands Checked by Each Macro 

MAXBADCOMMANDS

25 

Unknown commands 

MAXNOOPCOMMANDS

20 

NOOP, VERB, ONEX, XUSR

MAXHELOCOMMANDS

3 

HELO, EHLO

MAXVRFYCOMMANDS

6 

VRFY, EXPN

MAXETRNCOMMANDS

8 

ETRN

Note -

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