Messages that are rejected with a 5xx SMTP rejection code at the SMTP level are quarantined and if the sending servers is legit, it will be informed the sender about the rejection.
If you do not want to use the SpamExperts quarantine, you can configure the systems to deliver all messages to the destination mail-server and use "Subject Notation" instead.
This will tag messages on the subject so that filters can be used directly on the destination mail server.
Customers with SpamExperts active service can access the quarantine system directly either via IMAP or the SpamExperts Control Panel.
Once you have signed in to the control panel, you can either Release, Release & Train, Blacklist & Remove, Release and Whitelist, or Remove messages blocked as spam.
If an email has been incorrectly blocked, clicking "Release & Train" will result in the delivery of the false positive to the original recipient.
It will also trigger a report about the wrong classification to our systems to further improve the filtering.
Do note that enabling the quarantine is optional.
Using The IMAP Backend
The backend (powered by IMAP) is accessible as a super-administrator (using the special "global" account), domain (using the domain name), and the recipient (using the email address).
Customers using the SpamExperts hosted cloud can connect to quarantine.antispamcloud.com.
Users on a SpamExperts Local Cloud can use the hostname of the primary server in that cluster (or a CNAME associated with it).
For Local Cloud users, there is also a special "global" account that can be used to retrieve IMAP access to all quarantined messages.
Note that this is for super administrators only.
How To Access The SpamExperts IMAP Folders
There are several special folders in the IMAP account:
Caught: All incoming messages which have been quarantined can be found in this folder. It's not necessary to report these emails as Spam again, as they have already been classified as such. These emails will automatically expire.
Caught (Outgoing): All outgoing messages which have been quarantined can be found in this folder (optional). It's not necessary to report these emails as Spam again, as they have already been classified as such. These emails will automatically expire.
Training Requested: This is only relevant if a special option has been activated via the Software API to store a copy of unsure classifications in this folder. These messages have been delivered, but can be manually dragged/dropped to "Not Spam" or "Spam" to further fine-tune the systems. Please contact support@spamexperts.com using the email address you registered their service with if you would like more information on this one.
Release & Train: This is a write-only folder (which cannot be accessed by the email client). Emails drag/dropped from "Caught" to this folder will be delivered to the recipient and reported as a classification mistake to our central systems.
Release: This is a write-only folder (which cannot be accessed by the email client). Emails drag/dropped from "Caught" to this folder will be delivered to the recipient only.
Not Spam: This is a write-only folder (which cannot be accessed by the email client). Emails drag/dropped from "Caught" or "Training Requested" to this folder will be reported as a classification mistake to our central systems (it will not be delivered to the recipient).
Spam: This is a write-only folder (which cannot be accessed by the email client). Emails drag/dropped to this folder will be reported as Spam to our central systems (it will not be delivered to the recipient). This is useful to report spam that was not blocked correctly directly from the email client.
