Changes to the Timeout Option (System Administration Guide: Resource Management and Network Services)

System Administration Guide: Resource Management and Network Services

Changes to the `Timeout` Option

The following table provides information about the changes to the Timeout option. Specifically, this sendmail option has some new keywords and a new value for ident. In the Solaris operating environment, you should not need to change the default values for the keywords that are listed in the table. However, if you choose to make a change, use the keyword=value syntax. The value is a time interval. Refer to the following examples.

O Timeout.keyword=value   # for the configuration file
-OTimeout.keyword=value   # for the command line
define(`m4_name', value) # for m4 configuration

If you need to build a new sendmail.cf file, refer to Building the sendmail.cf Configuration File (Task) in Chapter 25, Mail Services (Tasks).

Note –

To avoid security risks, sendmail relinquishes its root permissions when you set this option from the command line.

Table 27–9 New and Revised Settings for Timeout


Keyword	Default Value	Description
`aconnect`	`0`	`m4` name: `confTO_ACONNECT` Limits the total time to wait for all connections to succeed for a single delivery attempt. The maximum value is unspecified.
`control`	`2m`	`m4` name: `confTO_CONTROL` Limits the total time that is dedicated to completing a control socket request.
`ident`	`5s`	`m4` name: `confTO_IDENT` Defaults to 5 seconds—instead of 30 seconds—to prevent the common delays that are associated with mailing to a site that drops `IDENT` packets. No maximum value is specified.
`lhlo`	`2m`	`m4` name: `confTO_LHLO` Limits the time to wait for a reply from an LMTP `LHLO` command. No maximum value is specified.
`queuereturn`	`5d`	`m4` name: `confTO_QUEUERETURN` Includes the value `now`, which immediately bounces entries from the queue without a delivery attempt.
`resolver.retrans`	`varies`	`m4` name: `confTO_RESOLVER_RETRANS` Sets the resolver's retransmission time interval (in seconds), which applies to `resolver.retrans.first` and `resolver.retrans.normal.`
`resolver.retrans.first`	`varies`	`m4` name: `confTO_RESOLVER_RETRANS_FIRST` Sets the resolver's retransmission time interval (in seconds) for the first attempt to deliver a message.
`resolver.retrans.normal`	`varies`	`m4` name: `confTO_RESOLVER_RETRANS_NORMAL` Sets the resolver's retransmission time interval (in seconds) for all resolver lookups, except the first delivery attempt.
`resolver.retry`	`varies`	`m4` name: `confTO_RESOLVER_RETRY` Sets the number of times to retransmit a resolver query, which applies to `Timeout.resolver.retry.first` and `Timeout.resolver.retry.normal`.
`resolver.retry.first`	`varies`	`m4` name: `confTO_RESOLVER_RETRY_FIRST` Sets the number of times to retransmit a resolver query for the first attempt to deliver a message.
`resolver.retry.normal`	`varies`	`m4` name: `confTO_RESOLVER_RETRY_NORMAL` Sets the number of times to retransmit a resolver query for all resolver lookups, except the first delivery attempt.