exim4's version of /usr/sbin/sendmail doesn't seem to like it when -t and -f are directly together. Cheers, spd --- src/mod/languages/mod_spidermonkey_etpan/mod_spidermonkey_etpan.c (revision 4323) +++ src/mod/languages/mod_spidermonkey_etpan/mod_spidermonkey_etpan.c (working copy) @@ -178,7 +178,7 @@ if (ifd) { close(ifd); } - snprintf(buf, B64BUFFLEN, "/bin/cat %s | /usr/sbin/sendmail -tf \"%s\" %s", filename, from, to); + snprintf(buf, B64BUFFLEN, "/bin/cat %s | /usr/sbin/sendmail -t -f \"%s\" %s", filename, from, to); system(buf); unlink(filename);