SMTP Delivery
|
| < Free Open Study > |
|
qmail includes the following SMTP delivery features:
-
RFC compliant. Complies with RFC 2821 (SMTP), RFC 974 (Mail Routing), and RFC 1123.
-
8-bit clean. Sends 7-bit ASCII characters as well as 8-bit extended characters.
-
Automatic downed host backoffs. If a host is unreachable, qmail waits an hour before trying again.
-
Artificial routing. Default routes—for example, via DNS MX records—can be overridden using qmail's smtproutes configuration file, which is equivalent to Sendmail's mailertable.
-
Per-buffer timeouts. Each new buffer of data to the remote SMTP server has its own time limit.
-
Passive SMTP queue. Mail can be queued to a mailbox for scheduled delivery using the serialmail package. This is useful for SLIP/PPP.
-
AutoTURN support. Using the serialmail package, clients can tell the server to send them their queued mail.
|
| < Free Open Study > |
|
