Hello Ferropolis,
Thank you for your post.
In MagicSpam LITE, the default behavior is to reject all detected spam messages - they are not accepted into your mail server at all. The rejected message would then be returned back to the sender by the remote sending server. Therefore, there is no way to retrieve such messages that have been discarded by MagicSpam.
In this case we would suggest whitelisting the sender in MagicSpam and asking them to resend the message.
Alternatively, please note that MagicSpam PRO and PLUS versions offer advanced “FLAG” feature that allows you to have detected spam messages only flagged for quarantine and delivered to the customer's Inbox or “Spam” folder, instead of rejecting them right away. Your customers would then be able to retrieve the spam messages by accessing their IMAP "Spam" folder using an IMAP capable email client.
You can simply configure any available Server Policy or BMS list in the “FLAG” mode to ensure that if that policy is hit, the message will be accepted for delivery.
To find out what policy has been triggered and to enable it in the "FLAG" mode for future deliveries, please check MagicSpam logs and in the log search results note the “Type” field, after which you can set the appropriate spam policy or BMS list to "FLAG" in the following two MagicSpam tabs:
Anti-Spam / Spam Policies
Anti-Spam / IP Reputation
Once you have enabled messages flagging, please review and adjust flag settings from the:
Anti-Spam (Settings) / System / 'Options' / “Advanced Options”
section in MagicSpam admin-interface panel.
There you have the option to rewrite the subject of the incoming local or remote messages with the “Rewrite Subject Text” and such messages will be delivered to the customer's Inbox. If you prefer such messages to go directly to the customer's "Spam" folder, please enable “Deliver to Spam Folder” option.
We hope this information helps.