With KMailer's Delivery
Engine, you can choose the most suitable delivery
mode for you from the 4 different message delivery
1. Direct delivery mode
This delivery mode doesn't use your mail server or
your ISP's mail server. Instead, It directly connects
and sends messages to the mail server of the recipient's
2. Multi-SMTP-Server delivery mode
Of course, you can also use one or more of your SMTP
servers to deliver your message. This mode supports
multiple SMTP servers and can automatically balance
the load between these SMTP servers.
3. Direct delivery with backup SMTP server
This delivery mode sends messages directly at first,
if the direct delivery fails, then KMailer will use
the backup SMTP servers you assigned to send the message
again. With this delivery mode, you can avoid overloading
your SMTP servers as well as improve the sending success
4. IIS SMTP Service delivery mode
IIS SMTP Service is a high performance SMTP server
on Windows NT/2000/XP. You can use it to send email
easily with KMailer. When a messages is submitted
to IIS SMTP service, consider it "fire and forget."
IIS handles the low level delivery details. If a failure
occurs, the message is retried at user defined intervals.
If a message can not be delivered after a user defined
expiration period, notifications can be sent to an
email addresses you specified.
Please note, if you assign multiple SMTP servers
to send out your messages in "Multi-SMTP-Server
delivery mode" or "Mixed delivery mode",
KMailer can automatically balance the load between
these servers. For instance, if you have 1000 messages
to be sent and you assign 10 SMTP servers to do the
job, then each server will handle about 100 messages.
This feature takes the load off of your SMTP servers
and speeds up message sending significantly.