SMTP Configuration
The SMTP service sends all mail generated by the appliance, typically in response to
alerts as configured on the Alerts screen. The SMTP service does not accept external mail;
it only sends mail generated automatically by the appliance itself.
By default, the SMTP service uses DNS (MX records) to determine where to send mail. If DNS
is not configured for the appliance's domain, or the destination domain for outgoing mail
does not have DNS MX records setup properly, the appliance can be configured to forward all
mail through an outgoing mail server, commonly called a smarthost.
Table 91 SMTP Properties
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Send mail through smarthost
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If enabled, all mail is sent through the specified outgoing mail
server. Otherwise, DNS is used to determine where to send mail for a
particular domain.
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Smarthost hostname
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Outgoing mail server hostname.
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Allow customized from address
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If enabled, the From address for email is set to the Custom from
address property. It may be desirable to customize this if the default
From address is being identified as spam, for example.
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Custom from address
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The From address to use for outbound email.
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When changing properties, you can use Alerts to send a test email to verify that the
properties are correct. A common reason for undelivered email is misconfigured DNS, which
prevents the appliance from determining which mail server to deliver the mail to; as
described earlier, a smarthost could be used if DNS cannot be configured.
Table 92 SMTP Logs
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network-smtp:sendmail
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Logs the SMTP service events
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mail
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Log of SMTP activity (including mails sent)
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