wij gebruiken ook GFI hier, en het werkt goed.
Hij scant op keywords
heeft een auto whitelist, die je evt. aan kan zetten.
Dat betekent dat als jij mailt naar een bepaald adres, dat hij dat adres dan niet als spam aanmerkt.
Wat wel irritant is , dat sommige berichten wel horen binnen te komen, terwijl dat geen spam is.
Maar wij doen bijv. zaken met nigeria, en dat is dus zo'n keyword.
Of bijvoorbeeld farm, die filtert ie ook, maar dat val ook allemaal weer aan te passen.
dit zijn de specs van gfi:
GFI MailEssentials for Exchange/SMTP Features
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Why choose GFI MailEssentials for anti spam?
Why is Bayesian filtering the best way to catch spam?
When can I switch on the Bayesian filter?
Must an admin check mailboxes for false positives?
Anti-virus & content security with GFI MailSecurity bundle - Check out the bundle pricing!
What's new in GFI MailEssentials 9?
More frequently asked questions
The leader in anti-spam
GFI MailEssentials is the market-leading server-based spam solution. More than 20,000 companies worldwide use GFI MailEssentials to protect their mail servers from spam.
Server-based anti-spam
GFI MailEssentials is server-based and installs on the mail server or at the gateway, eliminating the deployment and administration hassle of desktop-based anti-spam products. Desktop-based anti-spam involves training your users to create anti-spam rules sets, and subsequently users have to spend time updating these rules. Besides, this system does not prevent your server message stores from filling up with spam. View screenshot
Bayesian filtering technology
GFI MailEssentials features Bayesian filtering technology to detect spam based on message content. Rather than just checking for keywords, GFI's Bayesian filter takes the whole message into consideration as well as the content of valid emails that you send (known as 'ham'). This gives it a tremendous advantage over other anti-spam solutions that only take spam into account. Bayesian filters are widely acclaimed to be the best way to tackle spam because they use statistical intelligence to analyze the content of the mail. In short, Bayesian filtering has the following advantages:
Looks at the whole message
Adapts itself over time
Sensitive/adaptive to the company/user
Multilingual and international
Hard to trick.
Read more about Bayesian filtering in this GFI white paper.
Downloads updates to spam profile database
GFI MailEssentials can download updates to the Bayesian spam profile database from the GFI site, ensuring that it recognizes the latest spam and spamming techniques. GFI maintains the spam profile database by working with a number of spam collection organizations that continually supply spam samples.
Sort spam to users' junk mail folders
GFI MailEssentials gives you the flexibility to choose what to do with spam. You can delete it, move it to a folder, forward the spam mail to a public email address or folder, or send it to individual customizable folders (for example, a “junk mail” folder) in the end-users’ inboxes. This allows users to easily review mail that has been flagged as spam.
Mail header analysis & keyword checking
GFI MailEssentials intelligently analyzes the email header and identifies spam based on message field information. It detects forged headers, spam mutation, spam sent from invalid domains, and more. It also enables you too configure keywords to check for spam using keyword checking.
3rd party DNS blacklists (DNSBL) checking
GFI MailEssentials supports third party DNS blacklists (real time black hole lists), which are databases of known spammers. If the sending mail server is on one of those lists, GFI MailEssentials marks the email as spam. GFI MailEssentials supports popular third party blacklists such as ORDB, SpamHaus, Spamcop or RBL. GFI also supports custom blacklists.
Block foreign language spam
GFI MailEssentials can block mail that uses particular character sets. For example, you can greatly reduce spam simply by blocking all mails written in Japanese, Russian, Korean, etc.
Automatic whitelist management reduces false positives
Whitelists enable you to ensure that mail from particular senders or domains are never flagged as spam, permitting more stringent anti-spam rules. GFI MailEssentials includes a patented automatic whitelist management tool, which automatically adds all business partners to your whitelist. This greatly reduces false positives, without any need for additional administration.
Fake non-delivery reports (NDRs)
GFI MailEssentials bounces spam back to the sender with a false non-delivery report. This NDR leads them to believe that your address is invalid, and gets your organization’s addresses off spam lists.
Company-wide disclaimer/footer/header text
GFI MailEssentials enables you to add disclaimers to the top or bottom of an email. Text and HTML formats are supported. You can include fields/variables to personalize the disclaimer. You can also create multiple disclaimers and associate them with a user, group or domain.
Mail archiving to a database
GFI MailEssentials allows you to archive all inbound and outbound Internet mail. This enables you to keep a back-up of all email communications and easily search for a required message. This also allows you to comply with SEC and other regulations that require you to archive email correspondence.
Reports on spam filtering and mail usage
The GFI MailEssentials reporter creates advanced reports on your inbound and outbound email. You can report on how much spam you filtered and what rules caught most spam. You can generate reports on user, domain and mail server usage.
Mail monitoring
The mail monitoring feature enables you to keep a central store of the email communications of a particular person or department. Because you can configure the mail to be copied to an email address, all email can be stored in an Exchange or Outlook store, so that you can easily search for email or content.
Personalized server-based auto replies with tracking number
With server-based, personalized replies, you can advise your customers that their message has been received and who will handle it. GFI MailEssentials assigns a tracking number to each reply and can also include attachments. View screenshot
POP3 downloader
GFI MailEssentials includes a utility that can download mail from POP3 mailboxes. It supports both single and multiple recipient POP3 accounts.
Seamless integration with Exchange Server 2000/2003 & 5.5
GFI MailEssentials integrates seamlessly with Microsoft Exchange 2000/2003: It installs on the Exchange SMTP service and does not require gateway configuration. Via the SMTP protocol, it also works with Exchange 5.5, Lotus Notes and other popular SMTP/POP3 servers.
Content checking, anti-virus & anti-Trojan
Get anti-virus, email content checking and anti-Trojan protection for your mail server with the GFI MailSecurity/GFI MailEssentials bundle. GFI MailSecurity for Exchange/SMTP is an email content checking, exploit detection, threats analysis and anti-virus solution that removes all types of email-borne threats before they can affect your email users. Click here for more information!
You're in good company...
Many leading companies have chosen GFI MailEssentials. Here are just a few: Toyota, IBM, Schuff International, PerotSystems, British Midlands, B&W Speakers and many more. Customer list & customer testimonials
System requirements
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Windows 2000/2003 (Pro, Server or Advanced Server) or Windows XP Pro.
IIS5 SMTP service installed and running.
Microsoft Exchange Server 2000, 2003, 4, 5 or 5.5, Lotus Notes 4.5 and up, or an SMTP/POP3 mail server.
For exact system requirements, please see the manual.
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gewoon *@bla.com en die krijgen keurig mailtje terug sender denied.:strip_exif()/u/1703/crop5645b8b802a60_cropped.gif?f=community)
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