Articles

• Unable to open HTML Attachments from Office 365 Encrypted Emails

  Overview Recipients of Office 365 Encrypted Emails will sometimes receive HTML attachments having broken links or HTML scripts removed from the encrypted attachment thereby making them unable to acces...

• HTML Sanitizer

  Overview The HTML Sanitizer is one of the EmailSecurity filters that blocks unwanted emails by scanning and removing scripting code within the email body as well as attachments. The engine checks the ...

• Error Approving Emails: "Forms authentication failed for the request..."

  Overview When approving emails in the Configuration UI, the following error is received: Forms authentication failed for the request. Reason: The ticket supplied has expired. Environment GFI MailEssen...

• Russian encoded emails are garbled when GFI MailEssentials is enabled

  Versions / Builds AffectedGFI MailEssentials 2015 StatusOpen Problem SummaryRussian encoded emails are garbled when GFI MailEssentials is enabled TT / JIRAID2506 How to IdentifyConfirm issue by disabl...

• Prefetch does not retrieve the sending IP from emails

  Versions / Builds Affected2015 and later StatusOpen Problem SummaryPrefetch module is not extracting the IP from the received email TT / JIRAID2741 How to IdentifyA large amount of missed spam, usuall...

• Japanese emails are garbled by the HTML sanitizer

  Versions / Builds Affected2012 / 20130417 StatusResolved Problem SummaryWhen Japanese emails are sent with character set ISO-2022-JP, the emails are garbled unless the HTML sanitizer is disabled. TT /...

• HTML Sanitizer modified emails will have broken digital signatures but are still showing as OK in Dashboard

  Versions / Builds AffectedGFI MailEssentials 2015 StatusResolved Problem SummaryWhen HTML Sanitizer is enabled and it's removing code from emails, it will break digital signatures while still showing ...

• HTML Sanitizer failing to process emails

  Versions / Builds Affected2015 SR1 and previous versions StatusResolved Problem SummaryHTML Sanitizer fails to process an email when it has some malfored HTML encoding. How to IdentifyDashboard will s...

• How to manually update the Trojan and Executable scanner

  Answer PROBLEMAn antivirus engine definition has become corrupt and cannot be initialized or successfully complete Auto-Updates. ENVIRONMENT GFI MailEssentials All supported environments SOLUTION Ther...

• Configuring the Amount of Text to Flag an Email as Spam When It Contains a Remote Image

  Overview GFI MailEssentials can be configured to block messages that contain remote images. When this feature is enabled, GFI MailEssentials blocks all messages that contain remote images with a minim...