SpamExperts

Sender Whitelist/Blacklist

This refers to lists of email addresses / domains of people who are sending mail to the SpamExperts user.

Sender Whitelist (normally available at domain level)

All filtering checks are disabled for whitelisted senders. You can whitelist a specific sending email address, or a full sending domain. We recommend only using the sender whitelist if the system would otherwise wrongly block email from a certain sender. Spammers often use fake senders matching the recipient domain, or domains the recipient may have received emails from before, to try and bypass the filtering in that way. In addition, if the system is generally wrongly blocking a sender, you can always contact our customer support so we can research what problem is causing the rejection and resolve that issue.

Sender Blacklist (normally available at domain level)

Emails from senders listed on the blacklist will be automatically rejected. The messages are NOT quarantined. The messages are rejected with a 5xx SMTP error code, so legitimate sending SMTP servers will generate a bounce message to the sender.

Special Usage

You can whitelist/blacklist a specific sending email address, or a full sending domain. To whitelist/blacklist all senders from a domain, you should only enter the domain (without *@).

Recipient Whitelist/Blacklist

This refers to lists of email addresses / domains of people (SpamExperts users) to whom mail is sent.

Recipient Whitelist (normally available at domain level and email level)

Filter checks are disabled for listed addresses; Email directed to whitelisted recipients will bypass all filters. Recommendation is to use only for exceptional cases such as abuse@ or postmaster@.

Recipient Blacklist (normally available at domain level)

Emails to recipients listed on the recipient blacklist will be automatically rejected. The messages are NOT quarantined. The messages are rejected with a 5xx SMTP error code, so legitimate sending SMTP servers will generate a bounce message to the sender.

Special Usage

To whitelist/blacklist a specific recipient address, the local part of the address should be entered. For example if your domain is mydomain.com and you add ‘nofilter’ to the recipient whitelist, all emails sent tonofilter@mydomain.com will not be scanned for spam. To whitelist/blacklist all recipients for a domain (so all emails sent to the domain are not scanned/blocked), you can enter the wildcard * for the local part.

Check if the SpamExperts product is active in your account!

Spam can be controlled at domain level using the Sender and Recipient Whitelist/Blacklist.

Spam can be controlled at email level using a Recipient Whitelist.

Using the SpamExperts console ‘Report spam’ and ‘Report not spam’ will train the spamfilter.

The SpamExperts Quarantine Threshold level which is set per domain can only be changed by LuxCloud and only upon request by ticket.

The default value at the time of writing of this article is 0.85. This value is the score that must be obtained by a mail on analysis before the mail is considered as spam and quarantined. Therefore, the value must be raised for less mail to be considered as spam; SpamExperts propose to modify the value to 0.90.

SpamExperts checks all email header fields (sender, reply-to, to, cc, bcc, message-id, in-reply-to, references, subject, comments, keywords, optional-field) for invalid characters (non ASCII characters). ASCII characters are something like:

abcdefghijklmnopqrstuvwxyz

ABCDEFGHIJKLMNOPQRSTUVWXY

1234567890

!”#$%&()*+’-./:;<=>?@[]^_`{|}~

Space

NB Extended ASCII characters such as accented letters in French and German etc are treated as invalid characters.

Therefore, it is important that if you use other characters (so called invalid characters) in these fields, your email client must be capable of encoding them properly. According to SpamExperts, most email clients (Outlook, thunderbird) do this for you. However, if you are using a custom emailing tool/script, then it will need to be encoded either manually or implemented into the script.

An encoding example:

Using utf8, ‘Automática Electrónica’ codes as ‘=?utf-8?q?Autom=C3=A1tica_Electr=C3=B3nica?=’, which are all acceptable characters for SpamExperts.

A daily or weekly report can be generated for each domain (or for specific recipients at a domain) and is delivered via email.

• Go to SpamExperts management console
• Access Periodic Domain Report or Periodic User Report
• Select necessary options to activate the report

With this option you can enable periodic protection reports based on users. You can add users, either individually or via the .csv upload function for multiple users.

When this is set, the individual email users of a domain will receive daily or weekly reports with their own blocked spam mails, they will also be able to release any messages that are incorrectly blocked messages directly from the email.

The PDF report outlines a summary of the spam and viruses that the filtering service has protected the domain (or address) from receiving, and also includes information about the total volume of mail processed for the said user.

The report also includes a detailed table (for auditing purposes) of messages that were rejected but not quarantined. A similar table is also included of messages that were quarantined, including links to release each message directly.

The option "Automatically activate for all recipient" means that when spam is delivered to new users not yet known to our systems, they will automatically be added to the Periodic User Report.

In order to release emails detected as spam, you need to:

• Go to Customer Control Panel
• SpamExperts tab
• Access SpamExperts management console
• Click on Spam Quarantine
• Find the affected email and click on the envelope icon in the Action column

This will release email from spam quarantine.

The correct MX record input when SpamExperts service is activated is:

10 mx.luxcloud.net.

SpamExperts provides email client add-ons to report Spam which was incorrectly blocked by our central systems. Please check the following article for more information:

https://my.spamexperts.com/kb/78/Outlook-Email-Addon.html

Please note, that because of the security reasons, outgoing logs for spam are not available for resellers.

Incoming SpamExperts logs can be found on management console for each customer.

If you have questions on outgoing logs, you can contact our support team for help.

To access SpamExperts on a domain level, you need to:

Go to customer control panel > SpamExperts tab > SpamExperts tab  > General >  click on the link next to Antispam Controlpanel.
You will access spam control panel for domain of interest. There you can whitelist or blacklist recipients and senders but these lists are only applicable to incoming emails.

Most probably the message came through the SE filter because it scored lower than the threshold that is currently in place for the recipient's domain. To resolve this issue please report this message as spam using one of the methods described on SE knowledge base that can be accessed through following link https://my.spamexperts.com/kb/77/Report-Spam.html .
This should retrain the filter and prevent similar message from passing in the future.