Sending Information to the Developers
Files under 10Mb 10 MB in size can be attached right into the tracker issue (if you do not want the attachments to be publicly accessible, limit the attachment visibility to "teamcity-developers" user group only).
You can also send small files (up to 2 MbMB) via email: firstname.lastname@example.org or via online form (up to 20 MB). Please do not forget to mention your TeamCity version and environment and archive the files before attaching.
If the file is over 10 MbMB, you can upload the archived files to ftp://ftp.intellij.net/.uploads and let us know the exact file name. If you receive the permission denied error on an upload attempt, please rename the file. It's OK that you do not see the file listing on the FTP.
The FTP accepts standard anonymous credentials: username: "anonymous", password: "<your e-mail>".
In addition to usual, unencrypted connections, TLS ones are also supported.