Hi Jean, > Maybe you remember you made this small C program and I have been using > it for long time.
I'm pleased to know it proved to be useful. > ./ef: error while loading shared libraries: libmu_mbox.so.7: cannot open > shared object file: No such file or directory Apparently, the program has been built with mailutils 3.10 or earlier (back then the library major number was 7). Then, you have installed 3.11 or later. While doing so, old shared libraries were removed and replaced with new ones (with major verion 8). From what I see, you did not recompile the ef utility after upgrading mailuils. This means that the information stored in the header of the ef binary still points to old shared libraries, which causes the failure. To fix this, just recompile ef and reinstall it. Regards, Sergey PS: Did you manage to solve the mailer problem you reported earlier?