Mail Queue
All email processed by Kerio MailServer is stored in the mail queue. Physically, this is the folder store/queue in the directory where Kerio MailServer is installed. All messages are added to this queue as two files:
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The file with the .eml extension is the message itself
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The file with the .env extension is the message's SMTP envelope. This is used only for communication between SMTP servers and is discarded when the message is saved to the target mailbox.
Both files have identical names.
A message is sent from the mail queue either after it reaches the queue or in a time period defined in the scheduler see chapter Internet Connection for details. If the SMTP server sends messages straight to the target domains (i.e. no relay SMTP server is used) a situation can arise in which the message cannot be sent (no server for the target domain is available). In this case the message returns to the queue and is sent again later.
Note: If the server is in Offline mode, the message returns to the queue and the server attempts to send it again in a time specified in the scheduler (Next Try is only set in Online mode). If the server is in Offline mode (usually dial-up lines) then it is better to send messages via a relay SMTP server.
Manipulating Messages in the Mail Queue
You can take the following actions using the buttons under theMail Queue window:
- Refresh
- The Mail Queue window is refreshed whenever a change occurs in the queue. You can also use the Refresh button to do this manually.
- Remove messages
- Removes the selected message from the queue. Click this button to display a menu to select messages to be deleted from the queue. You can delete only selected messages, all messages or messages that meet specific criteria.
- Try to send now
- Attempts to send the selected message immediately.
- Run Queue
- Starts sending messages from the queue.
