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Adding feature to support the storage and retrieval of voicemail greetings using IMAP storage. 

This feature may be turned on by adding imapgreetings=yes to the general section of voicemail.conf
voicemail.conf.sample has details on the options added.

As a result, IMAP storage now has RETRIEVE and DISPOSE macros defined.

In addition to the IMAP greeting changes, I also have added an enum for the voicemail folders
and so now the code should be easier to understand and maintain when it comes to this area.



git-svn-id: http://svn.digium.com/svn/asterisk/trunk@72232 f38db490-d61c-443f-a65b-d21fe96a405b
This commit is contained in:
mmichelson 2007-06-27 19:50:21 +00:00
parent 9ca6486a2f
commit d69f3f4446
3 changed files with 229 additions and 33 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
CHANGES
View File

@ -106,6 +106,7 @@ Voicemail Changes
to account for this: "pollmailboxes" and "pollfreq". See the sample
configuration file for details.
* Added "tw" language support
* Added support for storage of greetings using an IMAP server
Queue changes
-------------

255
apps/app_voicemail.c
View File

@ -122,10 +122,12 @@ static char imapserver[48];
static char imapport[8];
static char imapflags[128];
static char imapfolder[64];
static char greetingfolder[64];
static char authuser[32];
static char authpassword[42];
static int expungeonhangup = 1;
static int imapgreetings = 0;
AST_MUTEX_DEFINE_STATIC(delimiter_lock);
static char delimiter = '\0';
@ -155,6 +157,9 @@ static void imap_mailbox_name(char *spec, struct vm_state *vms, int box, int tar
static int imap_store_file(char *dir, char *mailboxuser, char *mailboxcontext, int msgnum, struct ast_channel *chan, struct ast_vm_user *vmu, char *fmt, int duration, struct vm_state *vms);
static void update_messages_by_imapuser(const char *user, unsigned long number);
static int imap_remove_file (char *dir, int msgnum);
static int imap_retrieve_file (char *dir, int msgnum, char *mailbox, char *context);
static int imap_delete_old_greeting (char *dir, struct vm_state *vms);
struct vmstate {
struct vm_state *vms;
AST_LIST_ENTRY(vmstate) list;
@ -211,6 +216,15 @@ static AST_LIST_HEAD_STATIC(vmstates, vmstate);
#define ERROR_LOCK_PATH -100
enum {
NEW_FOLDER,
OLD_FOLDER,
WORK_FOLDER,
FAMILY_FOLDER,
FRIENDS_FOLDER,
GREETINGS_FOLDER
} vm_box;
enum {
OPT_SILENT = (1 << 0),
OPT_BUSY_GREETING = (1 << 1),
@ -399,7 +413,7 @@ struct vm_state {
#ifdef ODBC_STORAGE
static char odbc_database[80];
static char odbc_table[80];
#define RETRIEVE(a,b) retrieve_file(a,b)
#define RETRIEVE(a,b,c,d) retrieve_file(a,b)
#define DISPOSE(a,b) remove_file(a,b)
#define STORE(a,b,c,d,e,f,g,h,i) store_file(a,b,c,d)
#define EXISTS(a,b,c,d) (message_exists(a,b))
@ -408,8 +422,8 @@ static char odbc_table[80];
#define DELETE(a,b,c) (delete_file(a,b))
#else
#ifdef IMAP_STORAGE
#define RETRIEVE(a,b)
#define DISPOSE(a,b)
#define RETRIEVE(a,b,c,d) (imap_retrieve_file(a,b,c,d ))
#define DISPOSE(a,b) (imap_remove_file(a,b))
#define STORE(a,b,c,d,e,f,g,h,i) (imap_store_file(a,b,c,d,e,f,g,h,i))
#define EXISTS(a,b,c,d) (ast_fileexists(c,NULL,d) > 0)
#define RENAME(a,b,c,d,e,f,g,h) (rename_file(g,h));
@ -417,7 +431,7 @@ static char odbc_table[80];
#define IMAP_DELETE(a,b,c,d) (vm_imap_delete(b,d))
#define DELETE(a,b,c) (vm_delete(c))
#else
#define RETRIEVE(a,b)
#define RETRIEVE(a,b,c,d)
#define DISPOSE(a,b)
#define STORE(a,b,c,d,e,f,g,h,i)
#define EXISTS(a,b,c,d) (ast_fileexists(c,NULL,d) > 0)
@ -1966,6 +1980,8 @@ static void make_email_file(FILE *p, char *srcemail, struct ast_vm_user *vmu, in
struct tm tm;
char *passdata2;
size_t len_passdata;
char *greeting_attachment;
#ifdef IMAP_STORAGE
#define ENDL "\r\n"
#else
@ -1977,6 +1993,11 @@ static void make_email_file(FILE *p, char *srcemail, struct ast_vm_user *vmu, in
ast_copy_string(who, srcemail, sizeof(who));
else
snprintf(who, sizeof(who), "%s@%s", srcemail, host);
greeting_attachment = strrchr(ast_strdupa(attach), '/');
if (greeting_attachment)
*greeting_attachment++ = '\0';
snprintf(dur, sizeof(dur), "%d:%02d", duration / 60, duration % 60);
strftime(date, sizeof(date), "%a, %d %b %Y %H:%M:%S %z", vmu_tm(vmu, &tm));
fprintf(p, "Date: %s" ENDL, date);
@ -2041,8 +2062,9 @@ static void make_email_file(FILE *p, char *srcemail, struct ast_vm_user *vmu, in
fprintf(p, "X-Asterisk-VM-Caller-ID-Num: %s" ENDL, cidnum);
fprintf(p, "X-Asterisk-VM-Caller-ID-Name: %s" ENDL, cidname);
fprintf(p, "X-Asterisk-VM-Duration: %d" ENDL, duration);
if (!ast_strlen_zero(category))
if (!ast_strlen_zero(category))
fprintf(p, "X-Asterisk-VM-Category: %s" ENDL, category);
fprintf(p, "X-Asterisk-VM-Message-Type: %s\n", msgnum > -1 ? "Message" : greeting_attachment);
fprintf(p, "X-Asterisk-VM-Orig-date: %s" ENDL, date);
fprintf(p, "X-Asterisk-VM-Orig-time: %ld" ENDL, (long)time(NULL));
}
@ -2075,12 +2097,15 @@ static void make_email_file(FILE *p, char *srcemail, struct ast_vm_user *vmu, in
ast_channel_free(ast);
} else
ast_log(LOG_WARNING, "Cannot allocate the channel for variables substitution\n");
} else {
} else if (msgnum > -1){
fprintf(p, "Dear %s:" ENDL ENDL "\tJust wanted to let you know you were just left a %s long message (number %d)" ENDL
"in mailbox %s from %s, on %s so you might" ENDL
"want to check it when you get a chance. Thanks!" ENDL ENDL "\t\t\t\t--Asterisk" ENDL ENDL, vmu->fullname,
dur, msgnum + 1, mailbox, (cidname ? cidname : (cidnum ? cidnum : "an unknown caller")), date);
} else {
fprintf(p, "This message is to let you know that your greeting was changed on %s." ENDL
"Please do not delete this message, lest your greeting vanish with it." ENDL ENDL, date);
}
if (attach_user_voicemail) {
/* Eww. We want formats to tell us their own MIME type */
@ -2101,10 +2126,16 @@ static void make_email_file(FILE *p, char *srcemail, struct ast_vm_user *vmu, in
}
}
fprintf(p, "--%s" ENDL, bound);
fprintf(p, "Content-Type: %s%s; name=\"msg%04d.%s\"" ENDL, ctype, format, msgnum + 1, format);
if (msgnum > -1)
fprintf(p, "Content-Type: %s%s; name=\"msg%04d.%s\"" ENDL, ctype, format, msgnum + 1, format);
else
fprintf(p, "Content-Type: %s%s; name=\"%s.%s\"" ENDL, ctype, format, greeting_attachment, format);
fprintf(p, "Content-Transfer-Encoding: base64" ENDL);
fprintf(p, "Content-Description: Voicemail sound attachment." ENDL);
fprintf(p, "Content-Disposition: attachment; filename=\"msg%04d.%s\"" ENDL ENDL, msgnum + 1, format);
if (msgnum > -1)
fprintf(p, "Content-Disposition: attachment; filename=\"msg%04d.%s\"" ENDL ENDL, msgnum + 1, format);
else
fprintf(p, "Content-Disposition: attachment; filename=\"%s.%s\"" ENDL ENDL, greeting_attachment, format);
snprintf(fname, sizeof(fname), "%s.%s", attach, format);
base_encode(fname, p);
fprintf(p, ENDL "--%s--" ENDL "." ENDL, bound);
@ -2252,7 +2283,7 @@ static int invent_message(struct ast_channel *chan, char *context, char *ext, in
return -1;
}
RETRIEVE(fn, -1);
RETRIEVE(fn, -1, ext, context);
if (ast_fileexists(fn, NULL, NULL) > 0) {
res = ast_stream_and_wait(chan, fn, ecodes);
if (res) {
@ -2513,8 +2544,11 @@ static int imap_store_file(char *dir, char *mailboxuser, char *mailboxcontext, i
if (!ast_strlen_zero(vmu->serveremail))
myserveremail = vmu->serveremail;
make_file(fn, sizeof(fn), dir, msgnum);
if (msgnum > -1)
make_file(fn, sizeof(fn), dir, msgnum);
else
ast_copy_string (fn, dir, sizeof(fn));
if (ast_strlen_zero(vmu->email))
ast_copy_string(vmu->email, vmu->imapuser, sizeof(vmu->email));
@ -2527,6 +2561,12 @@ static int imap_store_file(char *dir, char *mailboxuser, char *mailboxcontext, i
if (!(p = vm_mkftemp(tmp))) {
ast_log(LOG_WARNING, "Unable to store '%s' (can't create temporary file)\n", fn);
return -1;
}
if (msgnum < 0 && imapgreetings) {
init_mailstream(vms, GREETINGS_FOLDER);
imap_delete_old_greeting(fn, vms);
}
make_email_file(p, myserveremail, vmu, msgnum, vmu->context, vmu->mailbox, S_OR(chan->cid.cid_num, NULL), S_OR(chan->cid.cid_name, NULL), fn, fmt, duration, 1, chan, NULL, 1);
@ -2540,8 +2580,8 @@ static int imap_store_file(char *dir, char *mailboxuser, char *mailboxcontext, i
fread(buf, len, 1, p);
((char *)buf)[len] = '\0';
INIT(&str, mail_string, buf, len);
init_mailstream(vms, 0);
imap_mailbox_name(mailbox, vms, 0, 1);
init_mailstream(vms, NEW_FOLDER);
imap_mailbox_name(mailbox, vms, NEW_FOLDER, 1);
if(!mail_append(vms->mailstream, mailbox, &str))
ast_log(LOG_ERROR, "Error while sending the message to %s\n", mailbox);
fclose(p);
@ -2644,13 +2684,13 @@ static int inboxcount(const char *mailbox, int *newmsgs, int *oldmsgs)
ast_debug(3,"Copied %s to %s\n",vmu->imapuser,vms_p->imapuser);
vms_p->updated = 1;
/* set mailbox to INBOX! */
ast_copy_string(vms_p->curbox, mbox(0), sizeof(vms_p->curbox));
ast_copy_string(vms_p->curbox, mbox(NEW_FOLDER), sizeof(vms_p->curbox));
init_vm_state(vms_p);
vmstate_insert(vms_p);
}
/* If no mailstream exists yet and even after attempting to initialize it fails, bail out */
ret = init_mailstream(vms_p, 0);
ret = init_mailstream(vms_p, NEW_FOLDER);
if (!vms_p->mailstream) {
ast_log (LOG_ERROR,"Houston we have a problem - IMAP mailstream is NULL\n");
free_user(vmu);
@ -2995,7 +3035,7 @@ static int leave_voicemail(struct ast_channel *chan, char *ext, struct leave_vm_
ast_log(LOG_WARNING, "Failed to make directory (%s)\n", tempfile);
return -1;
}
RETRIEVE(tempfile, -1);
RETRIEVE(tempfile, -1, ext, context);
if (ast_fileexists(tempfile, NULL, NULL) > 0)
ast_copy_string(prefile, tempfile, sizeof(prefile));
DISPOSE(tempfile, -1);
@ -3032,7 +3072,7 @@ static int leave_voicemail(struct ast_channel *chan, char *ext, struct leave_vm_
/* Play the beginning intro if desired */
if (!ast_strlen_zero(prefile)) {
RETRIEVE(prefile, -1);
RETRIEVE(prefile, -1, ext, context);
if (ast_fileexists(prefile, NULL, NULL) > 0) {
if (ast_streamfile(chan, prefile, chan->language) > -1)
res = ast_waitstream(chan, ecodes);
@ -4228,7 +4268,7 @@ static int forward_message(struct ast_channel *chan, char *context, struct vm_st
char buf[1024] = "";
int attach_user_voicemail = ast_test_flag((&globalflags), VM_ATTACH);
#endif
RETRIEVE(dir, curmsg);
RETRIEVE(dir, curmsg, sender->mailbox, context);
cmd = vm_forwardoptions(chan, sender, dir, curmsg, vmfmts, S_OR(context, "default"), record_gain, &duration, vms);
if (!cmd) {
AST_LIST_TRAVERSE_SAFE_BEGIN(&extensions, vmtmp, list) {
@ -4570,6 +4610,7 @@ static int play_message(struct ast_channel *chan, struct ast_vm_user *vmu, struc
return -1;
}
/* Find the format of the attached file */
strsep(&attachedfilefmt, ".");
@ -4706,7 +4747,7 @@ static int play_message(struct ast_channel *chan, struct ast_vm_user *vmu, struc
/* Retrieve info from VM attribute file */
make_file(vms->fn2, sizeof(vms->fn2), vms->curdir, vms->curmsg);
snprintf(filename, sizeof(filename), "%s.txt", vms->fn2);
RETRIEVE(vms->curdir, vms->curmsg);
RETRIEVE(vms->curdir, vms->curmsg, vmu->mailbox, vmu->context);
msg_cfg = ast_config_load(filename);
if (!msg_cfg) {
ast_log(LOG_WARNING, "No message attribute file?!! (%s)\n", filename);
@ -4756,9 +4797,9 @@ static void imap_mailbox_name(char *spec, struct vm_state *vms, int box, int use
char tmp[256], *t = tmp;
size_t left = sizeof(tmp);
if (box == 1) {
ast_copy_string(vms->curbox, mbox(0), sizeof(vms->curbox));
sprintf(vms->vmbox, "vm-%s", mbox(1));
if (box == OLD_FOLDER) {
ast_copy_string(vms->curbox, mbox(NEW_FOLDER), sizeof(vms->curbox));
sprintf(vms->vmbox, "vm-%s", mbox(OLD_FOLDER));
} else {
ast_copy_string(vms->curbox, mbox(box), sizeof(vms->curbox));
snprintf(vms->vmbox, sizeof(vms->vmbox), "vm-%s", vms->curbox);
@ -4778,8 +4819,10 @@ static void imap_mailbox_name(char *spec, struct vm_state *vms, int box, int use
/* End with username */
ast_build_string(&t, &left, "/user=%s}", vms->imapuser);
if(box == 0 || box == 1)
if(box == NEW_FOLDER || box == OLD_FOLDER)
sprintf(spec, "%s%s", tmp, use_folder? imapfolder: "INBOX");
else if (box == GREETINGS_FOLDER)
sprintf(spec, "%s%s", tmp, greetingfolder);
else
sprintf(spec, "%s%s%c%s", tmp, imapfolder, delimiter, mbox(box));
}
@ -4811,7 +4854,7 @@ static int init_mailstream(struct vm_state *vms, int box)
#include "linkage.c"
#endif
/* Connect to INBOX first to get folders delimiter */
imap_mailbox_name(tmp, vms, 0, 0);
imap_mailbox_name(tmp, vms, NEW_FOLDER, 0);
stream = mail_open(stream, tmp, debug ? OP_DEBUG : NIL);
if (stream == NIL) {
ast_log (LOG_ERROR, "Can't connect to imap server %s\n", tmp);
@ -4863,11 +4906,11 @@ static int open_mailbox(struct vm_state *vms, struct ast_vm_user *vmu, int box)
pgm->deleted = 0;
pgm->undeleted = 1;
/* if box = 0, check for new, if box = 1, check for read */
if (box == 0) {
/* if box = NEW_FOLDER, check for new, if box = OLD_FOLDER, check for read */
if (box == NEW_FOLDER) {
pgm->unseen = 1;
pgm->seen = 0;
} else if (box == 1) {
} else if (box == OLD_FOLDER) {
pgm->seen = 1;
pgm->unseen = 0;
}
@ -4882,6 +4925,141 @@ static int open_mailbox(struct vm_state *vms, struct ast_vm_user *vmu, int box)
return 0;
}
static int imap_remove_file(char *dir, int msgnum)
{
char fn[PATH_MAX];
char full_fn[PATH_MAX];
char msgnums[80];
if (msgnum > -1) {
snprintf(msgnums, sizeof(msgnums), "%d", msgnum);
make_file(fn, sizeof(fn), dir, msgnum);
} else
ast_copy_string(fn, dir, sizeof(fn));
if ((msgnum < 0 && imapgreetings) || msgnum > -1) {
ast_filedelete(fn, NULL);
snprintf(full_fn, sizeof(full_fn), "%s.txt", fn);
unlink(full_fn);
}
return 0;
}
static int imap_retrieve_file (char *dir, int msgnum, char *mailbox, char *context)
{
struct ast_vm_user *vmu;
struct vm_state *vms_p;
char *file, *filename;
char *attachment;
/*char *mb, *cur;*/
int ret = 0, i;
BODY *body;
/* This function is only used for retrieval of IMAP greetings
* regular messages are not retrieved this way, nor are greetings
* if they are stored locally*/
if (msgnum > -1 || !imapgreetings) {
return 0;
} else {
file = strrchr(ast_strdupa(dir), '/');
if (file)
*file++ = '\0';
else {
ast_debug (1, "Failed to procure file name from directory passed.\n");
return -1;
}
}
/* We have to get the user before we can open the stream! */
/* ast_log (LOG_DEBUG,"Before find_user, context is %s and mailbox is %s\n",context,mailbox); */
vmu = find_user(NULL, context, mailbox);
if (!vmu) {
ast_log (LOG_ERROR,"Couldn't find mailbox %s in context %s\n",mailbox,context);
return -1;
} else {
/* No IMAP account available */
if (vmu->imapuser[0] == '\0') {
ast_log (LOG_WARNING,"IMAP user not set for mailbox %s\n",vmu->mailbox);
free_user(vmu);
return -1;
}
}
/* check if someone is accessing this box right now... */
vms_p = get_vm_state_by_mailbox(mailbox,0);
if (!vms_p) {
ast_log(LOG_ERROR, "Voicemail state not found!\n");
return -1;
}
ret = init_mailstream(vms_p, GREETINGS_FOLDER);
if (!vms_p->mailstream) {
ast_log (LOG_ERROR,"IMAP mailstream is NULL\n");
free_user(vmu);
return -1;
}
for (i = 0; i < vms_p->mailstream->nmsgs; i++)
{
mail_fetchstructure(vms_p->mailstream, i + 1, &body);
/* We have the body, now we extract the file name of the first attachment. */
if (body->nested.part->next && body->nested.part->next->body.parameter->value) {
attachment = ast_strdupa(body->nested.part->next->body.parameter->value);
} else {
ast_log(LOG_ERROR, "There is no file attached to this IMAP message.\n");
return -1;
}
filename = strsep(&attachment, ".");
if (!strcmp(filename, file))
{
ast_copy_string(vms_p->fn, dir, sizeof(vms_p->fn));
vms_p->msgArray[vms_p->curmsg] = i + 1;
save_body(body, vms_p, "2", attachment);
free_user(vmu);
return 0;
}
}
free_user(vmu);
return -1;
}
static int imap_delete_old_greeting (char *dir, struct vm_state *vms)
{
char *file, *filename;
char *attachment;
char arg[10];
int i;
BODY* body;
file = strrchr(ast_strdupa(dir), '/');
if (file)
*file++ = '\0';
else {
ast_log (LOG_ERROR, "Failed to procure file name from directory passed. You should never see this.\n");
return -1;
}
for (i = 0; i < vms->mailstream->nmsgs; i++) {
mail_fetchstructure(vms->mailstream, i + 1, &body);
/* We have the body, now we extract the file name of the first attachment. */
if (body->nested.part->next && body->nested.part->next->body.parameter->value) {
attachment = ast_strdupa(body->nested.part->next->body.parameter->value);
} else {
ast_log(LOG_ERROR, "There is no file attached to this IMAP message.\n");
return -1;
}
filename = strsep(&attachment, ".");
if (!strcmp(filename, file))
{
sprintf (arg,"%d", i+1);
mail_setflag (vms->mailstream,arg,"\\DELETED");
}
}
mail_expunge(vms->mailstream);
return 0;
}
#else
static int open_mailbox(struct vm_state *vms, struct ast_vm_user *vmu,int box)
{
@ -6195,7 +6373,7 @@ static int vm_tempgreeting(struct ast_channel *chan, struct ast_vm_user *vmu, st
while((cmd >= 0) && (cmd != 't')) {
if (cmd)
retries = 0;
RETRIEVE(prefile, -1);
RETRIEVE(prefile, -1, vmu->mailbox, vmu->context);
if (ast_fileexists(prefile, NULL, NULL) <= 0) {
#ifndef IMAP_STORAGE
play_record_review(chan, "vm-rec-temp", prefile, maxgreet, fmtc, 0, vmu, &duration, NULL, record_gain, NULL);
@ -6638,13 +6816,13 @@ static int vm_execmain(struct ast_channel *chan, void *data)
#endif
/* Retrieve old and new message counts */
ast_debug(1, "Before open_mailbox\n");
res = open_mailbox(&vms, vmu, 1);
res = open_mailbox(&vms, vmu, OLD_FOLDER);
if (res == ERROR_LOCK_PATH)
goto out;
vms.oldmessages = vms.lastmsg + 1;
ast_debug(1, "Number of old messages: %d\n",vms.oldmessages);
/* Start in INBOX */
res = open_mailbox(&vms, vmu, 0);
res = open_mailbox(&vms, vmu, NEW_FOLDER);
if (res == ERROR_LOCK_PATH)
goto out;
vms.newmessages = vms.lastmsg + 1;
@ -6665,7 +6843,7 @@ static int vm_execmain(struct ast_channel *chan, void *data)
} else {
if (!vms.newmessages && vms.oldmessages) {
/* If we only have old messages start here */
res = open_mailbox(&vms, vmu, 1);
res = open_mailbox(&vms, vmu, OLD_FOLDER);
play_folder = 1;
if (res == ERROR_LOCK_PATH)
goto out;
@ -7806,6 +7984,17 @@ static int load_config(void)
} else {
ast_copy_string(imapfolder,"INBOX", sizeof(imapfolder));
}
if ((val = ast_variable_retrieve(cfg, "general", "imapgreetings"))) {
imapgreetings = ast_true(val);
} else {
imapgreetings = 0;
}
if ((val = ast_variable_retrieve(cfg, "general", "greetingfolder"))) {
ast_copy_string(greetingfolder, val, sizeof(greetingfolder));
} else {
ast_copy_string(greetingfolder, imapfolder, sizeof(greetingfolder));
}
#endif
/* External voicemail notify application */
if ((val = ast_variable_retrieve(cfg, "general", "externnotify"))) {
@ -8396,7 +8585,7 @@ static int advanced_options(struct ast_channel *chan, struct ast_vm_user *vmu, s
make_file(vms->fn2, sizeof(vms->fn2), vms->curdir, vms->curmsg);
snprintf(filename,sizeof(filename), "%s.txt", vms->fn2);
RETRIEVE(vms->curdir, vms->curmsg);
RETRIEVE(vms->curdir, vms->curms, vmu->mailbox, vmu->context);
msg_cfg = ast_config_load(filename);
DISPOSE(vms->curdir, vms->curmsg);
if (!msg_cfg) {
@ -8659,7 +8848,7 @@ static int play_record_review(struct ast_channel *chan, char *playfile, char *re
if (!outsidecaller) {
/* user was recording a greeting and they hung up, so let's delete the recording. */
ast_filedelete(tempfile, NULL);
}
}
return cmd;
}
if (cmd == '0') {

6
configs/voicemail.conf.sample
View File

@ -139,6 +139,12 @@ emaildateformat=%A, %B %d, %Y at %r
;pollfreq=30 ; If the "pollmailboxes" option is enabled, this option
; ; sets the polling frequency. The default is once every
; ; 30 seconds.
; If using IMAP storage, specify whether voicemail greetings should be stored
; via IMAP. If no, then greetings are stored as if IMAP storage were not enabled
;imapgreetings=no
; If imapgreetings=yes, then specify which folder to store your greetings in. If
; you do not specify a folder, then INBOX will be used
;greetingsfolder=INBOX
;
; Users may be located in different timezones, or may have different
; message announcements for their introductory message when they enter