7 and later forms of the Timeout option (where the earlier forms are all deprecated),
individual timeouts can be listed more attractively like this:
O Timeout.rcpt = 25m
O Timeout.datablock = 3h
For the previous two examples, the timeout for acknowledgment of the RCPT To: command
(list a recipient) is 25 minutes and the timeout for acknowledgment of receipt of each line
of the mail message is 3 hours. All the others that are not specified assume the default
values.
The Timeout option is not safe. If specified from the command line, it can cause sendmail to
relinquish its special privileges.
24.9.119.1 Timeout.aconnect (V8.12 and later)
When sendmail attempts to establish a network connection to another host, it uses the
connect(2) system call. If the connection is going to fail, either that system call will time out
(after an amount of time that varies with the operating system), or the connection will be
immediately rejected. If there are additional hosts in the list of hosts to connect to, sendmail
will proceed to the next host in the list and try to connect again.
If you wish to limit the total amount of time all these connection attempts will take, you
can do so with this aconnect keyword to the Timeout option:
O Timeout.aconnect=timeout ?†? configuration file (V8.12 and later)
-OTimeout.aconnect=timeout ?†? command line (V8.
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