What to do when I get a message "Auto-reply not sent: Too many e-mail to:" in SuperOffice Service?

The SuperOffice installation includes a feature that helps protect your sending reputation. It is triggered when a SuperOffice user (or a group of users) attempts to send multiple emails within a short period to a specific email address (or addresses). Then SuperOffice might prevent e-mail delivery. 

The rule that prevents sending e-mails uses values stored in the mail_block database table. In this table, the system stores email addresses and numeric values (in the field time_pool). These values are reduced every time an e-mail is sent to the e-mail address, and every one-second value is increased by one. The number, which is deducted from the original value, depends on the settings in the config database table in the field mb_modifier. When the numeric value next to the e-mail address drops below the value defined in the field mb_treshold, the e-mail sending to this e-mail address is stopped. The initial value of the time_pool field is set by the number in the mb_max_value field. It is the upper (initial) value for the spam-control algorithm, ensuring that a single email address does not receive too many emails.

Hence, by default, the system will allow 1 email per 10 minutes on average, with an initial buffer of 2 emails. In other words, if you send 3 emails to the same address instantly, the third one will be blocked.

The setup of this feature can be changed; there is no user interface to do it. The only way to change or disable it is to change it directly in the SuperOffice database. 

• If you increase the default value of 1210 in the mb_max_value field, the buffer will increase. That means more emails may be sent before they are blocked. If the value of mb_modifier decreases, more emails will be allowed per time frame.
   
• If the mb_modifier field value is set to 0, then the rule of preventing e-mail from being sent will be disabled entirely.
   

Note!

1. Please be aware that we recommend taking a backup before making any changes directly to the database. This FAQ explains how to do it.
    
2. SuperOffice Online customers should contact SuperOffice support if changes are needed.