Email security
SAFETY FIRST
Email Security Information
We use modern mechanisms on our e-mail systems to detect and eliminate harmful content.
Nevertheless, certain content poses particular risks that we want to exclude from the outset for security reasons.
Therefore, we do not allow all file types as attachments in incoming e-mails.
Below you will find an overview of permitted file formats as well as those that we refuse to accept.
Also, forbidden file attachments in a packed archive (e.g. ZIP, RAR, etc. ...) are detected by our security systems and the messages are then rejected.
Prohibited file formats
| Application: | File extension: | Measure: |
| Microsoft Word (before 2007) document | *.doc | Rejection |
| Microsoft Word (before 2007) template | *.dot | Rejection |
| Microsoft Word (current) document with macros | *.docm | Rejection |
| Microsoft Excel (before 2007) document | *.xls | Rejection |
| Microsoft Excel (before 2007) Template | *.xlt | Rejection |
| Microsoft Excel (current) Document with macros | *.xlsm | Rejection |
| Microsoft Powerpoint (before 2007) Presentation | *.ppt | Rejection |
| Microsoft Powerpoint (current) Präsentation mit Makros | *.pptm | Rejection |
| Microsoft Publisher (before 2007 and current) | *.pub | Rejection |
| Microsoft Excel (current) Document with macros | *.xltm | Rejection |
| Microsoft Windows Powershell | *.ps1 *.ps1xml *.ps2 *.ps2xml *.psc2 *.psc1 | Rejection |
| Microsoft Visual Studio Macro | *.vsmacros | Rejection |
| Programm information file | *.pif | Rejection |
| HTML application | *.hta | Rejection |
| Microsoft Windows Batch Skript | *.com *.cmd *.bat | Rejection |
| Microsoft Basic Code | *.bas | Rejection |
| Microsoft Visual Basic Skript | *.vbe *.vbs | Rejection |
| Screensaver | *.scr | Rejection |
| Microsoft Windows Registry Files | *.reg | Rejection |
| Executable programs | *.exe | Rejection |
| Apple MAC OS application bundle | *.app | Rejection |
| Microsoft animated cursor | *.ani | Rejection |
| WinACE Archive file | *.ace | Rejection |
Allowed file formats
Generally allowed are harmless formats like graphics, photos, videos.
Other document formats worth mentioning and relevant are listed in the following table:
| Application: | File extension: | Measure: |
| Microsoft Word (current) Dokument | *.docx | approved |
| Microsoft Excel (current) Dokument | *.xlsx | approved |
| Microsoft Powerpoint (current) Presentation | *.pptx | approved |
| Comma separated value | *.csv | approved |
| Simple text file | *.txt | approved |
| Rich Text Format | *.rtf | approved |
| Portabe Document Format | approved | |
| Open Document Text | *.odt | approved |
| Open Document Sheet (Table document) | *.ods | approved |
| Open Document Drawing (Illustration or drawing) | *.odg | approved |
| Open Document Format | *.odf | approved |
Questions?
If you have any questions regarding IT and e-mail security, please contact IT via our central office or the person responsible for you directly.