How can you Implement Challenge-Response Verification Using BoxTrapper
Posted by Allura on 11 04 2019.
A Brief Introduction
Effective use of the BoxTrapper feature is that it has the capability to filter spam from your inbox through challenge-response verification. When an email account, which is BoxTrapper enabled, receives an email, BoxTrapper, in response, automatically sends a verification email. The sender, however, must complete the verification process before the email can pass to your inbox. If the sender does not verify the email, the verification will fail and BoxTrapper will not be able to clear the message for delivery. However, after a certain period of time, the system automatically deletes the spam.
If you want to enable BoxTrapper, you have to perform the following steps:
- Firstly, you have to click on Manage for the account that you want to modify.
- Secondly, you have to click on Enable.
If you choose to enable BoxTrapper, it has the capability to automatically whitelist any email address, to which you send an email, even if you don’t have automatic whitelisting enabled.
If you want to edit the BoxTrapper settings then you can click on Manage next to the account that you want to modify. You will then see the BoxTrapper Configuration interface appear.
If you want to configure BoxTrapper settings, you have to perform the following steps:
- Firstly, you have to click on Configure Settings.
- You can then enter a list of email addresses which should be comma-separated, that forward mail to the account in the ‘Email addresses for this account’ text box.
- Then you can enter your name in the ‘Your Name’ text box.
- Thereafter, you can enter the number of days for which you want to keep logs and messages in the ‘The number of days that you wish to keep logs and messages in the queue’. text box.
- After completing Step No. 4. You can insert the minimum spam score you desire in the ‘Minimum SpamAssassin Spam Score required to bypass BoxTrapper’ text box.
It is important to remember that when the BoxTrapper receives an email with a spam score which is lower than the Minimum SpamAssassin Spam Score required to bypass BoxTrapper value, it automatically delivers the message. The default value for this option is -2.5.
- If you want to enable or disable automatic whitelisting, you have to select the significant checkbox.
BoxTrapper has the capability to automatically whitelist any email address to which you wish to send a message.
- If you want to automatically whitelist addresses in the To and CC lines of incoming whitelisted emails, you have to select the ‘Automatically whitelist the To and From lines from whitelisted senders (whitelist by association)’ checkbox.
- Finally, click on Save to save your desired configurations.
Edit confirmation messages
BoxTrapper has the capability of automatically responding to an email with messages that the system builds from the templates mentioned below:
- verify— In a case where an address that does not exist on the whitelist or blacklist sends an email, BoxTrapper will respond with this message. This message shall request a response to confirm that the sender is legitimate.
- verifyreleased— when a person responds to the verify message as stated above, with an email or clicks on the verification link, BoxTrapper will respond with this message.
- returnverify— when the verification process fails BoxTrapper will respond with this message.
- blacklist— BoxTrapper will respond with this message when an address which is blacklisted sends an email.
If you want to customize the verification and blacklist message templates, you can click on Edit.
The following variables are used by the templates:
- %email% — The email address of the sender.
- %fromname% — The name of the recipent.
- %subject% — The subject of the sender’s email.
- %acct% — The username of the recipent.
- %msgid% — The message ID which the sender’s email is using.
- %headers% — The heading information of the sender’s email.
- %if can_verify_web% and %endif% — These tags help build a section for BoxTrapper to verify senders through a web link.
It should be noted that you must not alter verify#%msgid% in the subject line of the verify message template as BoxTrapper will not be able to function without that specific code.
If you want to restore the default message templates, you have to click on Reset to Default.