Email filtering options can be configure per domain via the Control Panel page Domain Settings. The Domain Settings page gives you access to modify our entire range of SpamStopsHere's filters and services to better fit your spam, virus and malware blocking needs. More information over our filters and services options shown in the article.

Please allow 10-15 minutes for any changes to take effect.

Modify Your Domain Email Filtering Options

To see the list of filters and options available for your domain:

  1. Login to the control panel
  2. On left navigation bar under Hosted Services, click SpamStopsHere .
  3. Click Configurations Options for the domain you want to see.

Here you will see a list of the filter and other settings available for the selected domain.

Domain Setting Filter Actions

Many of our filters have configurable actions, such as modify subject, forward to, etc. These can all be set to your preference and updated at anytime. For more information over these settings please visit our Filter Options Article

Mailboxes Spam Filtering and Mailbox List Settings

With a Mailbox List you can configure it so you only accept email for valid email addresses and instantly reject invalid recipients. This will greatly reduces the load on your server by letting us reject messages to invalid recipients before they are even filtered.

Configure your mailbox list and mailbox list spam filtering settings with the Mailboxes setting.

  1. Follow these steps to get to the Domain Settings Page.
  2. Under Anti-Spam Filtering Settings click Mailboxes.

Mailbox List Options

There are two options related to your Mailbox list:

  • Accept e-mail for any mailbox.
  • Only accept mail for the mailboxes listed below.

The default setting Accept e-mail for any mailbox allows any mailbox (example@yourdomain) to be filtered and then sent to your mail server. This setting can be changed at any time to Only accept mail for the mailboxes listed below which will only accept emails listed on your mailbox list.

To avoid any possible issues it is important to complete your mailbox list prior to modifying this setting.

Spam Filtering Options

There are two options related to your mailbox list spam filtering:

  • Spam filtering ON by default for all mailboxes.
  • Spam filtering OFF by default for all mailboxes.

The default setting Spam filtering ON by default for all mailboxes makes sure all mailboxes listed or not have spam filtering activated. Even with this setting on you may turn filtering off for individual mailboxes via your mailbox list. By changing this setting to Spam filtering OFF by default for all mailboxes all mailboxes spam filtering will be set to off unless specified differently in your mailbox list.

Edit, Add New or Upload Mailbox List

When editing, adding or uploading a mailbox list there is a format that needs to be followed:

Mailbox;Options

The mailbox is the user and the options is the filter option you want to set for that user.

For an example, a mailbox list would look like this:

moe;0
larry;0
curly;4


A domains mailbox list can be added to manually by clicking Add New Mailboxes or you can use the Upload Mailbox List to upload a complete mailbox list via a text file in the format shown above.

Some mail servers allow the use of sub-addressing with +tag qualifiers. For example, moe+newsletters@example.com. If you use this type of sub-addressing, you may use a +* wildcard entry in the mailbox list above. For example, if you would like to accept moe@ as well as any sub-address for moe, enter both "moe" and "moe+*" in the mailbox list.

Mailbox List Options

Each option is indicated by a number:

Use Default: 0, Spam Filtering On: 1,Spam Filtering Off: 2, Reject address: 4, Disable Anti-Virus If Available: 8, Disable Spam & Anit-Virus Filtering: 10.

URL and Phone Number Filter Options

You may have noticed spam want you to click on a URL or call a phone number. This is why SpamStopsHere maintains a large database of these URLs (web and IP addresses) and phone numbers found in the body of recent spam. URL / Phone # Filtering is the first level of filtering performed.

  1. Follow these steps to get to the Domain Settings Page.
  2. Under Anti-Spam Filtering Settings click URL/Phone # Filter.

We suggest deleting (fully blocking) these filtered messages. The default settings is Reject (Sender will be notified) (Recommended). If you would like to change these settings please refer to our Filter Options Article for more information over the different settings.

Phrase and Content Filter Options

The content filtering used by Spamstopshere is based on long, distinct phrases found in recent, often offensive, spam. It is extremely unlikely to block legitimate email.

Examples of our content filtering:

  • Diplomas from prestigious non-accredited universities
  • To grab a FREE ID#, simply go to the link
  • GENUINE LASTING RESULTS! OUR PILLS WILL

We suggest using it in conjunction with the URL/Phone# filtering. Filtered email can be forwarded to a "spam" mailbox. If "Rejected", the sender will be notified that the email was blocked. These options can be configured by going to:

  1. Follow these steps to get to the Domain Settings Page.
  2. Under Anti-Spam Filtering Settings click Phrase Filter.

We suggest deleting (fully blocking) these filtered messages. The default settings is Reject (Sender will be notified) (Recommended). If you would like to change these settings please refer to our Filter Options Article for more information over the different settings.

Sender Policy Framework Filtering

The Sender Policy Framework (SPF) is an open standard to help fight sender address forgery. Forging the sender address is a common technique used by spammers to avoid delivery notifications and by defrauders to impersonate trusted senders for phishing scams.

SPF allows domain owners to publicize a list of servers authorized to send e-mail for that domain. This information can be used to determine if an e-mail message has a forged sender address.

The message action set will be taken when the following are true:

  • The domain in the sender's address has SPF records established.
  • The e-mail message does not come from a server authorized by SPF to send e-mail for that domain.

The default message actions is Continue Filtering E-mail (Recommended with Modify Subject enabled), to change the message actions:

  1. Follow these steps to get to the Domain Settings Page.
  2. Under Anti-Spam Filtering Settings click SPF Filter.

If you would like to change these settings please refer to our Filter Options Article for more information over the different settings.

When an anti-spam filter identifies a message, the filter action removes the message from the filter chain, preventing further processing. Because this isn't an anti-spam filter, the action of "Continue Filtering E-mail" is available, which continues processing the message through the remaining anti-spam filters in the chain. For this filter, "Modify Subject" doesn't end the filter chain and can be used together with "Continue Filtering E-Mail".

Configure Your SPF Filter Options

  1. Click on the Edit link next to SPF Filter.
  2. Select whether you want messages identified by this filter tagged with the "Modify Subject" checkbox (Recommended).
  3. Select one of the four radio options next to the action you would like to take on email caught with this filter (Continue Filtering E-mail Recommended).
  4. Click on the Set button to save the changes.

SPF Record validation can cause false positives, but they will likely be caused by configuration problems with the sending domain's SPF records or due to senders unknowingly violating the domain owner's sending policy. In general, SPF validation is a very sound method to validate a sender and can safely be used to reject forged e-mail, regardless of whether it would otherwise be identified as spam.

When using an anti-spam service, you will need to disable any SPF record checking that you may have implemented on your own email server. This is because e-mail will be delivered to you from the anti-spam service, and not directly from the sender's mail server, breaking any SPF record validation done on your end. Instead, you will need to rely on the anti-spam service's SPF record validation, such as using the above feature.

Pattern Matching Filter

The Pattern Matching filtering detects HTML "tricks" which only spammers use.

  • IP addresses that are encoded in hex format
  • Use of HTML comments in the middle of words
  • Excessive use of font changes and "invisible" characters

It also blocks obvious porn, "Nigerian" and "Ebay" scams, and is updated as needed.

As it is extremely unlikely to block legitimate email; we suggest "Deleting" or "Rejecting" it.

The default message actions is Reject (Sender will be notified) (Recommended), to change the message actions:

  1. Follow these steps to get to the Domain Settings Page.
  2. Under Anti-Spam Filtering Settings click Pattern Matching.

If you would like to change these settings please refer to our Filter Options Article for more information over the different settings.

Additional Filtering Options

These additional filtering rules are based on common spammer methods and can reduce porn and other spam.

"Aggressive" options are not recommended, but may be suitable for small or family domains that want to block porn from minors. However they will block some legitimate emails, and should be reviewed.

Please refer to our Additional Filters article for more information over these filter options.

We suggest rejecting these filtered messages back to the sender. If any "Aggressive" options are set, we suggest reviewing the blocked emails, to change the message actions:

  1. Follow these steps to get to the Domain Settings Page.
  2. Under Anti-Spam Filtering Settings click Additional Filtering.

If you would like to change these settings please refer to our Filter Options Article for more information over the different settings.

Spammer IP Blacklist Option

Use this feature to configure the action taken after the filtering of email using the Spamstopshere maintained global blacklist of email addresses and IP addresses. This list is for temporary annoyances where we find the best way to block them is by IP address or email address and they are annoying enough that we enable the filtering for all users.

The default message actions is Reject (Sender will be notified) (Recommended), to change the message actions:

  1. Follow these steps to get to the Domain Settings Page.
  2. Under Anti-Spam Filtering Settings click Spammer IP Blacklist.

If you would like to change these settings please refer to our Filter Options Article for more information over the different settings.

Country Blocking Option

Country blocking identifies email sent from mail servers that are in the IP address space assigned to a specific country.

The Country Blocking is static. If a sender's email is coming from an IP address in a foreign country that you are subscribed to for the Country Blocking feature, the message will be identified by this filter. It doesn't matter whether the message is spam or not. However, if it may be coming from a country that is known for sending a lot of spam. If you only have contacts in the United States, it's possible that these messages are unwanted, but the email did not trigger any of our spam filters.

The default setting is to tag these messages with "[Foreign Sender]". The tag is informational only and it may help you to determine whether to look at the message. To change the message actions or set countries to block:

  1. Follow these steps to get to the Domain Settings Page.
  2. Under Anti-Spam Filtering Settings click Country Blocking.

If you would like to change these settings please refer to our Filter Options Article for more information over the different settings.

To Change the Country Blocking

  1. Click on Edit next to Country Blocking.
  2. Check the boxes next to the countries you would like to block, or uncheck to stop blocking.
  3. Select one of the four radio options next to the action you would like to take on email caught with this filter (MODIFY SUBJECT Recommended).
  4. Click on Set to save the changes.
Block By Country
Country Zone# Tagging
Argentina 5 Recommended unless you have clients there
Brazil 6 Recommended unless you have clients there
China 7 Highly recommended
Japan 8 Optional (Due to many open relays in Japan)
Korea 9 Highly recommended
Nigeria 10 Recommended
Russia 11 Recommended unless you have clients there
Singapore 12 Recommended
Taiwan 13 Highly recommended
Thailand 14 Recommended
Malaysia 24 Recommended
Hong Kong 25 Recommended

Real-Time Blacklists

This service optionally uses several popular "Real-time Blacklists" (RBLs) of mail server IP addresses known for spamming.

To change the message actions:

  1. Follow these steps to get to the Domain Settings Page.
  2. Under Anti-Spam Filtering Settings click Real-Time Blacklists.

The third party Real-Time Blacklists are maintained by third parties. These blacklists are of IP addresses that were reported to have sent spam to their users. If a sender's email is coming from an IP address on one of the blacklists that you are subscribed to, the message will be identified by this filter.

We don't maintain these blacklists, and you will want to contact the list maintainer in order to determine why one of your senders was listed. The status of an IP address being listed does change, and it doesn't require any changes on your end to get more of your legitimate or spam email identified by this filter from one day to the next. It just depends on who you receive email from, and whether they're listed in the real-time blacklist that day. It's possible that these messages are unwanted, but the email did not trigger any of our spam filters.

Many organizations get listed in a real-time blacklist because a workstation on their network is sending spam. This can be the result of a virus infection, or simply a malicious spamming user, or unsound mailing list policies. Many ISPs such as AOL or Comcast could also have their email servers listed temporarily for the same reason, causing all email from that ISP to be tagged for awhile.

The default setting is to tag these messages with "[Blacklisted Sender]". The tag is informational only and it may help you to determine whether to look at the message.

These filters typically will only identify less than 1% of your email. If you don't find these tags useful, you can disable them by unsubscribing from these filters in the Spamstopshere Control Panel. Note that many anti-spam products only use these types of IP address based filters, and it used to be common to block messages identified by them. Due to their inaccuracy, we don't recommend DELETING or REJECTING messages caught by these filters, so there is no need to QUARANTINE (Professional and Enterprise Edition) the messages either. These types of filters should simply be used to provide additional information about the source of the message.

You can find out more about the blacklist by viewing the organization's web site.

  • SpamCop bl.SpamCop.net - See www.spamcop.net

Domain Whitelist and Blacklist

Use this whitelist to unconditionally accept email from an IP or email address and blacklist to block email from an IP or email address.

To change the message actions for blacklist:

  1. Follow these steps to get to the Domain Settings Page.
  2. Under Anti-Spam Filtering Settings click Domain Blacklist.

Please see our Whitelist and Blacklist article for informations over this subject.

Attachment Filters

Attachment filters allow you to enforce policies against email attachments based on filename. Since wildcards are supported, it is trivial to enforce policies against files based on filename extension.

  1. Follow these steps to get to the Domain Settings Page.
  2. Under Anti-Spam Filtering Settings click Attachment Filters.

For more information on configuring this option: Attachment filtering and stripping and Filter Options Attachment and Anti-Virus Filtering

Custom Content Filter Rules

The advanced custom content filtering rules are for the unique situations that a power user may want to provide specific mail handling rules for.

  1. Follow these steps to get to the Domain Settings Page.
  2. Under Anti-Spam Filtering Settings click Custom Content Filter Rules.

This feature allows you to create custom, advanced string matching filtering rules based on parts of the message. The rules are checked against each email message in priority order until one matches or the last rule is processed.

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