Hello,
Could you do the following checks:

• You have file named ytnef.h, mine is at /usr/include/ytnef.h but you can do: find . -name "ytnef"
• Check if this file contains the missing symbol: cat usr/include/ytnef.h | grep TNEFCheckForSignature
• Show me the result of: gcc -lytnef

Could you make this dummy test.c:

#include <stdio.h>
#include <ytnef.h>

int main() {
// printf() displays the string inside quotation
printf("Hello, World!");
DWORD signature;
TNEFCheckForSignature(signature);
return 0;
}

Then try to compile it: gcc -o test test.c -lytnef

Hi,
Sure. Here are the results:

cat /usr/include/ytnef.h | grep TNEFCheckForSignature

int TNEFCheckForSignature(DWORD sig);

gcc -lytnef

/usr/bin/ld: /usr/lib/gcc/x86_64-redhat-linux/11/../../../../lib64/crt1.o: in function _start': (.text+0x1b): undefined reference tomain'
collect2: error: ld returned 1 exit status

And the compilation of the dummy works.

Hello,
Strange, I've test to send a tnef mail in my dev server (ubuntu jammy) and there is no symbol error. I've add the library to another step within the makefile to test. Could you try it with the next nightly tomorrow? (It should be sogo--5.9.1.20231221)

Hi,
I installed the new nightly and the error message is still here.
And other ideas?

Hello,
When I'll have time, I will install a SOGo environment with rhel 9 to test it.
If you have time, you could try to build sogo from the source and then I can guide you to what to do and test.

Sure I can do it. Should I do this: https://www.sogo.nu/support/faq/how-do-i-compile-sogo.html ?
Or should I do only a part of it in my situation?

Do it like in the link.
The goal is that after you can build sogo, it will be way easier to find where to include ytnef for the missing symbol.