HP-UX Mailing Services Administrator's Guide (B2355-91064)

#O Timeout.control=2m

• You can set the resolver’s transmission time interval (in seconds) using the

Timeout.resolver.retrans option. This option sets the

Timeout.resolver.retrans.first, which sets the resolver’s transmission

time interval (in seconds) for the first attempt to deliver a message. It also sets the

Timeout.resolver.retrans.normal option. The default setting for this option

is:

#O Timeout.resolver.retrans=5s

#O Timeout.resolver.retrans.first=5s

#O Timeout.resolver.retrans.normal=5s

• You can set the frequency of resolver query retransmission using the

Timeout.resolver.retrans.normal option. This option sets the

Timeout.resolver.retry.first option for the first attempt to deliver a

message. It also sets the Timeout.resolver.retry.normal option for all

resolver lookups except for the first delivery attempt. The default setting for this

option is:

#O Timeout.resolver.retry=4

#O Timeout.resolver.retry.first=4

#O Timeout.resolver.retry.normal=4

DataFileBufferSize

Use this option to control the maximum size of a memory-buffered data (df) file before

using a disk-based file. The default setting for this option is:

#O DataFileBufferSize=4096

FallBackSmartHost

When Sendmail attempts to connect to a remote host for mail transfer, it checks the

identity of the remote host. It also looks up the MX records and calls the res_search()

BIND library routine, to discover all MX records for the host. If Sendmail does not find

the MX records, it tries to deliver the message to a single original host, which is a central

mail hub to which the mail can be forwarded. If this fails, Sendmail attempts to deliver

the mail to the host listed in the FallbackMXHost option.

Following is the format of the FallbackMXHost option:

46 Configuring and Administering Sendmail