Sender

Restrictions on email senders

   Senders

Reject Senders

This is the list of disallowed email addresses that cannot send email through your SMTP server and will be rejected before they can send any data. You can use wildcards (e.g. *@*.tw, customerdirect@*.*) or leave blank for no restrictions. Note that this list overrides any 'Allowed Senders' and any 'auto-allowed' senders in the SPAM blocking module.

Example interface:

Example:*@c?olmail.com

Importing data

Press the import button, also shown as >> when the interface is small, to import data into the list.The following file types are supported:

        CSV (Comma delimited) (*.csv)
        Text (Tab delimited) (*.txt)
        All Files (*.*)
        
The data should be separated by commas, tab characters or newlines.
Each data entry must match the validation wildcard '*@*.*'. Entries that do not match will be discarded.
Duplicate entries are not imported more than once.

Always Allow Senders

This is the list of allowed email addresses that can always send email through your SMTP server. You can use wildcards (e.g. *@*.tw, customerdirect@*.*) or leave blank for no specific allowed senders. Note that this list overrides any 'Blocked Senders'

Example interface:

Example:*@examplecustomer.com

Importing data

Press the import button, also shown as >> when the interface is small, to import data into the list.The following file types are supported:

        CSV (Comma delimited) (*.csv)
        Text (Tab delimited) (*.txt)
        All Files (*.*)
        
The data should be separated by commas, tab characters or newlines.
Each data entry must match the validation wildcard '*@*.*'. Entries that do not match will be discarded.
Duplicate entries are not imported more than once.

Auto allow outbound recipients

Any recipients of email from users within your company can be automatically added to the list of users whose email will never be checked for SPAM. This helps prevent false-positives (email being marked/ blocked as SPAM when they are in fact not)

Example interface:

Options:On/Off

Default:on

Edit

Press the Edit button to open the Allowlist management pages.

User Restrict Send (Prevent Open Relay)

You can restrict the ability to send email to only your listed users. This can help prevent open relay, but be sure to add all your users to this list, otherwise they cannot send email to external parties

Example interface:

Options:On/Off

Default:off

Restrict authenticated clients to send using email address or alias

Restrict authenticated clients to sending using their own email address or an alias

Example interface:

Options:On/Off

Default:off

   Mass Mailing Prevention

Maximum Senders Action

Some clients, particularly spammers will try various sender addresses until they find one that is allowed. In this case you can close the connection on them or block their IP address to prevent further attempts

Example interface:

Options:Off, Close Connection, Block IP

Default:Off

Maximum Invalid Senders

This is the maximum number of invalid sender address attempts allowed

Example interface:

Range2 - 32

Default:2

Example:4