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Email check

The email check enables you to scan incoming and outgoing emails and file attachments for viruses and eliminate possible infections at the source. The software can directly delete file attachments or repair infected files if viruses are found.

Warning: In Microsoft Outlook, emails are scanned by a plugin. This provides the same level of protection as the protection function for POP3/IMAP offered by AntiVirus. 

Incoming mails

The following options are available for virus protection for incoming emails:

  • In case of an infection: Here you can specify what is supposed to happen if an infected email is discovered. Depending on the purposes for which you are using your computer, different settings apply here. Generally we recommend using the Disinfect (if not possible: delete attachment/text) setting.
  • Check received emails: By activating this option, all emails you receive while you are working on your computer are checked for viruses.
  • Attach report to received infected mails: When you enable the report option and a virus is found, the warning VIRUS appears in the subject header of the infected email. There is also a message at the beginning of the email text: Warning! This email contains the following virus followed by the virus name and whether the virus has been deleted or whether it was possible to repair the infected file.

Outgoing mails

The software also allows you to scan your emails for virus infection before you send them, to ensure you do not inadvertently send viruses yourself. If you try to actually send a virus (unintentionally), the message The email [subject header] contains the following virus: [virus name] appears. The mail cannot be sent, and the corresponding email will not be sent. Please check the box next to Check emails before sending to scan outgoing emails.

Scan options

Here you can enable or disable basic virus check options:

  • Use engines: The software works using two engines – two analysis units optimized for one another. In principle, use of both engines should guarantee optimum virus protection results.
  • OutbreakShield: This option lets you activate the OutbreakShield. With OutbreakShield activated, the software creates checksums of emails, compares these with constantly updated anti-spam blacklists on the Internet and, as a result, is able to react to a mass-mailing before the relevant virus signatures become available. OutbreakShield uses the Internet to monitor increased volumes of suspicious emails, enabling it to close the window between the mass mail outbreak and its containment with specially adapted virus signatures, practically in real time. The OutbreakShield is an integral part of the email virus blocker.

Encrypted connections (SSL)

Many email providers (such as GMX, WEB.DE, T-Online and Freenet) have now started using SSL encryption. This means that emails and email accounts have become significantly more secure. However, it is still necessary to use antivirus software to protect your email as well. G DATA offers the Encrypted Connections (SSL) module for this. This gives you the added option of checking SSL-encrypted email for viruses and malware.

To enable the G DATA software to check email that has been SSL-encrypted, a G DATA software certificate must be imported into the email program. This ensures that your G DATA software can check incoming email.

It supports all email programs that can either import certificates or can access the Windows certificate store, e.g.:

  • Outlook 2003 or higher
  • Thunderbird
  • The Bat
  • Pegasusmail

Please proceed as follows if the G DATA certificate is not installed automatically:

  1. Your email program should not be active when installing the certificate. Therefore please close all email programs before generating and installing the certificate.
  2. In the G DATA software, check the box next to Check SSL Connections.
  3. Click on the Export Certificate button. The G DATA software will now generate a certificate. This file is called GDataRootCertificate.crt.
  4. Now open the GDataRootCertificate.crt file. A dialogue window appears in which you can install the certificate on your computer.
  5. In the dialogue window, click on the Install Certificate button and follow the instructions from the installation wizard.

You are done. Outlook and every other email program that can access the Windows certificate store now has the certificate required for checking SSL-encrypted incoming email for viruses and other malware.

Note: If you use Thunderbird (portable) and the certificate is not imported automatically, you will need to import this later and manage the trust settings for the generated G DATA certificate. To do this, please select the CERTIFICATES button in Thunderbird (portable) under Options > Advanced > Certificates. If you click here, various tabs appear. Please select the Authorities tab and then the IMPORT button. You can now select the "G DATA Mail Scanner Root" certificate.

If you now check the boxes next to the following option fields and click OK, your Thunderbird portable will be protected by G DATA:

  • Trust this CA to identify websites.
  • Trust this CA to identify email users.
  • Trust this CA to identify software developers.

There are similar functions in other email programs for importing certificates. In case of doubt, please see the appropriate help text to read how this works for the email program you use.

Email check - Advanced settings

If you do not use the default ports for your email programs, you can enter the port you use for incoming or outgoing emails under Server port(s). Click on the Default button to automatically restore the default port numbers. You can also enter multiple ports. Separate each of these with a comma.

Warning: Microsoft Outlook is protected by a special plugin that allows you to scan folders and emails directly from Outlook. In order to scan an email or a folder in Outlook for viruses, just click on the G DATA icon and the currently selected email folder will be scanned.

Since the software processes incoming emails before the email program itself, you may get an error message if there is a large quantity of emails or the connection is slow. This is because it is not receiving the email data immediately as it is being scanned for viruses by the software. Such error messages in the email program are prevented by checking the box next to Avoid mail server timeout, and as soon as any email data has been scanned for viruses, it is then forwarded to the email program as normal.

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