Pressing Alt-u again will disable UNIX file writing. This function overrides the incaddr function. These files may then be mailed directly using Net-Tamer. If you cannot use the UNIX message file methods described above, the following information contributed by users of other programs may be useful to you. Potato requires you to use your mail software to send the final message it generates.
Some programs have size limitations.
Also, MS Internet Explorer 3.0 Internet Mail can insert large text files. The fault almost certainly lies with their email client. I suffered from that problem. I tested Agent V1.01, Pegasus V2.54, DTmail, Mailcat, Eudora Lite V3.02, Netscape 4.01 and Netcplus -Smart Mail V3.02. Pegasus is one of the very few that allows complete disablement of MIME headers.