You can also retrieve your emails via an IMAP client (e.g. Thunderbird). To do this, you need a device-specific app password. You can create this in the self-service portal.

• Name: First name and surname
• E-mail address: name [dot] surname [at] alias [dot] tu-freiberg [dot] de (e.g. max [dot] mustermann [at] student [dot] tu-freiberg [dot] de)
• Username: Your central user ID (e.g. ab12cdef)
• Password: device-specific app password
• Incoming mail server: unixmail.tu-freiberg.de (port: 993, SSL)
• Outgoing mail server: secsmtp.tu-freiberg.de (port: 465, SSL)

Maximum size of an email

An email may be a maximum of 40 MB in size. Larger emails will not be sent.

If you would like to send larger files, please use an alternative method (as soon as it is available online again).

• Cloud sharing: Share the desired file via your cloud.
• FileTransfer: Send a file up to 3 GB in size via FileTransfer.

Permitted file formats

You cannot send files that can be executed under Windows. Sending the following extensions is prevented for security reasons. An SMTP error message will be generated.

Invalid extensions:

• exe
• vbs
• pif
• scr
• bat
• cmd
• com
• cpl
• dll
• doc
• or the corresponding MIME types

Incoming messages are checked for spam or malware by appropriate anti-spam appliances. Dangerous messages or messages clearly identified as spam are deleted or quarantined. You will be informed about quarantined emails on a daily basis.

Alternatively, you can use the anti-spam appliance to find out which emails have been quarantined (menu item Mail quarantine) or rejected (menu item Mail log), to free emails from quarantine and to maintain a personal white and blacklist.