The post office connector performs the delivery of emails to mailboxes. It is responsible for executing mailbox filters, delivery events, auto responders and quota handling.
The options are explained below:
When mailbox has reached quota
Specify what occurs when a mailbox’s quota is exceeded. Determine whether the user is notified of the quota issue and whether the message is returned to the sender, or, sent to the postmaster for that post office.
Notifications when quota is reached
Configure what notifications are sent when a quota is reached, such options such as, notify Sender only, notify sender and mailbox and send no notifications.
Quota enumeration
When a mailbox is at its quota, it can be calculated in two different ways.1. Only Inbox folder counts towards quota 2. All users mail folders counts towards quota (Example: Sent Items, Drafts, Inbox)
Auto responders enabled
When this setting is enabled there are two selections;
1. The default setting to 'Always respond to the sender'
2. Send one response per sender per day can help reduce the problem of spammers generating unnecessary mail.
Also if a sender needs to send to a MailEnable mailbox that has an auto responder configured, then they will not receive more than one auto-responder per day. If the check box is cleared then the auto responder feature is disabled. This can aid in the diagnosis of mail loops or any possible auto responder issues.
NDR Generation
Non Delivery Receipts can be configured. Options such as not sending NDRs or allowing the SMTP service to handle and send all default Non Delivery Receipts.
Redirection handling
Redirection handling has the following settings:
1. Normal redirection - will redirect emails. Redirected emails have the envelope sender of the original message preserved.
2. Remail from mailbox address - will redirect and send using the default email address for the mailbox. If a default address has not been set, the first address found for the mailbox will be used. This option will help prevent rejections from remote servers who are using SPF checking.
3. 'Disable all redirections' will prevent any redirections configured for a mailbox from working.