About mail sending and receipt

To initiate the sending of outgoing emails, use the Send and receive email (SM507010) window.
To send the emails selectively, use the Pending emails (SM507000) window.

Once the system accounts are configured, you can use the Send and receive email (SM507010) window to initiate the receipt of incoming emails and schedule the operations of sending and receiving mail. To process selected incoming and outgoing emails, use the Pending emails (SM507000) window.

To allow the system to automatically resend outgoing emails whose processing has failed, you can use the Automatic resend attempts setting in the Email preferences (SM204001) window.
This setting defines the number of times that the scheduled processing is allowed to fail for an email before the email's status changes from Pending processing to Failed. However, the system ignores this setting if a critical error (that is, an error whose code starts with 5, such as 550) occurs on the mail server or if you run the processing manually.

You can suspend the operations of sending and receiving emails for all system email accounts at once by selecting the Suspend email processing check box in the Email preferences (SM204001) window.
You may need to do this if you have troubles with your mail servers and need to suspend all operations on these servers to diagnose the problem.

Create a send and receive email schedule