Unix Tip: Sendmail gets smarter
By Sandra Henry-Stocker, ITworld.com
Before sendmail 8.13, sendmail servers were generally set up in one of two ways. Either their configurations were based on the main.cf file and they used DNS MX records to determine the identities (and IP addresses) of hosts to which mail was to be delivered or their configuration was based on the subsidiary.cf file and they were set up to relay mail through a system with more knowledge of the outside world (in particular, access to a real world DNS server) than systems requiring the relay service.
These two basic configurations have basically merged in version 18.13 of the sendmail software with the addition of a new configuration option -- the FallbackSmartHost.
Read the full article here
Before sendmail 8.13, sendmail servers were generally set up in one of two ways. Either their configurations were based on the main.cf file and they used DNS MX records to determine the identities (and IP addresses) of hosts to which mail was to be delivered or their configuration was based on the subsidiary.cf file and they were set up to relay mail through a system with more knowledge of the outside world (in particular, access to a real world DNS server) than systems requiring the relay service.
These two basic configurations have basically merged in version 18.13 of the sendmail software with the addition of a new configuration option -- the FallbackSmartHost.
Read the full article here
posted by ITworld Editors at 12:07 PM
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