Fixed an important bug with folded headers! g_strconcat() returns a *copy* of the string, but hdr->value still pointed to the old header (which probably was a memory leak, too). If the folded part had been quite small it was likely that the new string was at the same position as the old one, thus making everything go well. But if pretty long headers were folded several times it was likely that the new string was allocated somewhere else in memory, thus breaking things. In result mails to lots of recipients (folded header) were frequently only sent to the ones in the first line. Sorry for the inconvenience.

#undef DEF_MAIL_GROUP
#undef DEF_MAIL_USER

/* Define if you want to use lockfile library.  */
#undef USE_LIBLOCKFILE

#undef ENABLE_DEBUG

#undef ENABLE_RESOLVER

#undef ENABLE_SMTP_SERVER

#undef ENABLE_POP3

#undef ENABLE_AUTH

#undef ENABLE_MAILDIR

#undef USE_LIB_CRYPTO

#undef ENABLE_IDENT

#undef ENABLE_MSERVER

#undef CONF_DIR

#undef DATA_DIR

#undef SBINDIR