From: John Gardiner Myers <jgm@cmu.edu>
To: Cyrus beta testers
Subject: Cyrus 1.4.11 patch

The following patch brings Cyrus 1.4.10 to 1.4.11, fixing a bunch of
reported bugs and a few new features.


diff -cr imapd-1.4.10/doc/html/changes.html imapd-1.4.11/doc/html/changes.html
*** imapd-1.4.10/doc/html/changes.html	Wed Jul 24 15:10:24 1996
--- imapd-1.4.11/doc/html/changes.html	Mon Aug  5 12:43:30 1996
***************
*** 29,34 ****
--- 29,36 ----
  
  <LI> New "<TT>krbck</TT>" program for diagnosing common kerberos problems.
  
+ <LI> auth_unix no longer requires users to be in the passwd file.
+ 
  <LI> AUTHENTICATE command now reports the protection mechanism in use
  in the text of the tagged OK response
  
***************
*** 101,107 ****
  
  <LI> Add a bunch of prototype declararations to the code.
  
! <LI> In deliver, change the MULT support to instead use the MRSMTP syntax.
  
  <LI> Implement some experimental protocol extensions for optimizing
  disconnected use resynchronization.  Most extensions are disabled by
--- 103,109 ----
  
  <LI> Add a bunch of prototype declararations to the code.
  
! <LI> In deliver, change the MULT support to instead use the LMTP syntax.
  
  <LI> Implement some experimental protocol extensions for optimizing
  disconnected use resynchronization.  Most extensions are disabled by
diff -cr imapd-1.4.10/imap/append.c imapd-1.4.11/imap/append.c
*** imapd-1.4.10/imap/append.c	Sat Jul  6 17:56:18 1996
--- imapd-1.4.11/imap/append.c	Wed Jul 31 17:45:27 1996
***************
*** 27,32 ****
--- 27,35 ----
   *
   */
  
+ #ifdef HAVE_UNISTD_H
+ #include <unistd.h>
+ #endif
  #include <stdio.h>
  #include <ctype.h>
  #include <string.h>
diff -cr imapd-1.4.10/imap/deliver.c imapd-1.4.11/imap/deliver.c
*** imapd-1.4.10/imap/deliver.c	Tue Jul  2 12:31:57 1996
--- imapd-1.4.11/imap/deliver.c	Wed Aug 28 15:51:14 1996
***************
*** 61,67 ****
  int dupelim = 0;
  
  struct protstream *savemsg();
! char *convert_smtp();
  
  main(argc, argv)
  int argc;
--- 61,67 ----
  int dupelim = 0;
  
  struct protstream *savemsg();
! char *convert_lmtp();
  
  main(argc, argv)
  int argc;
***************
*** 71,77 ****
      int r;
      int exitval = 0;
      char *return_path = 0;
!     int smtpflag = 0;
      char *mailboxname = 0;
      struct protstream *prot_f;
      unsigned size;
--- 71,77 ----
      int r;
      int exitval = 0;
      char *return_path = 0;
!     int lmtpflag = 0;
      char *mailboxname = 0;
      struct protstream *prot_f;
      unsigned size;
***************
*** 128,135 ****
  	case 'E':
  	    exit(prunedelivered(atoi(optarg)));
  
! 	case 's':
! 	    smtpflag = 1;
  	    break;
  
  	case 'q':
--- 128,135 ----
  	case 'E':
  	    exit(prunedelivered(atoi(optarg)));
  
! 	case 'l':
! 	    lmtpflag = 1;
  	    break;
  
  	case 'q':
***************
*** 141,148 ****
  	}
      }
  
!     if (smtpflag) {
! 	smtpmode(quotaoverride);
  	exit(0);
      }
  
--- 141,148 ----
  	}
      }
  
!     if (lmtpflag) {
! 	lmtpmode(quotaoverride);
  	exit(0);
      }
  
***************
*** 305,311 ****
      if (dot) *dot = '\0';
      if (*user) {
  	if (strlen(user) > sizeof(buf)-10) {
! 	    return convert_smtp(IMAP_MAILBOX_NONEXISTENT);
  	}
  	strcpy(buf, "user.");
  	strcat(buf, user);
--- 305,311 ----
      if (dot) *dot = '\0';
      if (*user) {
  	if (strlen(user) > sizeof(buf)-10) {
! 	    return convert_lmtp(IMAP_MAILBOX_NONEXISTENT);
  	}
  	strcpy(buf, "user.");
  	strcat(buf, user);
***************
*** 315,321 ****
  	r = mboxlist_lookup(user+1, (char **)0, (char **)0);
      }
      if (r) {
! 	return convert_smtp(r);
      }
      if (dot) *dot = '.';
  
--- 315,321 ----
  	r = mboxlist_lookup(user+1, (char **)0, (char **)0);
      }
      if (r) {
! 	return convert_lmtp(r);
      }
      if (dot) *dot = '.';
  
***************
*** 325,331 ****
  
  #define RCPT_GROW 3 /* XXX 30 */
  
! smtpmode(quotaoverride)
  int quotaoverride;
  {
      char *return_path = 0;
--- 325,331 ----
  
  #define RCPT_GROW 3 /* XXX 30 */
  
! lmtpmode(quotaoverride)
  int quotaoverride;
  {
      char *return_path = 0;
***************
*** 349,355 ****
  
      gethostname(myhostname, sizeof(myhostname)-1);
      
!     printf("220 %s ESMTP ready\r\n", myhostname);
      for (;;) {
  	fflush(stdout);
  	if (!fgets(buf, sizeof(buf)-1, stdin)) {
--- 349,355 ----
  
      gethostname(myhostname, sizeof(myhostname)-1);
      
!     printf("220 %s LMTP ready\r\n", myhostname);
      for (;;) {
  	fflush(stdout);
  	if (!fgets(buf, sizeof(buf)-1, stdin)) {
***************
*** 380,386 ****
  				notifyheader,
  				rcpt_addr[i][0] ? rcpt_addr[i] : (char *)0, p,
  				quotaoverride);
! 		    printf("%s\r\n", convert_smtp(r));
  		}
  		prot_free(prot_f);
  		goto rset;
--- 380,386 ----
  				notifyheader,
  				rcpt_addr[i][0] ? rcpt_addr[i] : (char *)0, p,
  				quotaoverride);
! 		    printf("%s\r\n", convert_lmtp(r));
  		}
  		prot_free(prot_f);
  		goto rset;
***************
*** 387,392 ****
--- 387,401 ----
  	    }
  	    goto syntaxerr;
  
+ 	case 'l':
+ 	case 'L':
+ 	    if (!strncasecmp(buf, "lhlo ", 5)) {
+ 		printf("250-%s\r\n250-8BITMIME\r\n250-ENHANCEDSTATUSCODES\r\n250 PIPELINING\r\n",
+ 		       myhostname);
+ 		continue;
+ 	    }
+ 	    goto syntaxerr;
+ 
  	case 'm':
  	case 'M':
  	    if (!strncasecmp(buf, "mail ", 5)) {
***************
*** 402,412 ****
  		printf("250 2.1.0 ok\r\n");
  		continue;
  	    }
- 	    else if (!strncasecmp(buf, "mhlo ", 5)) {
- 		printf("250-%s\r\n250-8BITMIME\r\n250-ENHANCEDSTATUSCODES\r\n250 PIPELINING\r\n",
- 		       myhostname);
- 		continue;
- 	    }
  	    goto syntaxerr;
  
  	case 'n':
--- 411,416 ----
***************
*** 482,493 ****
  
  
  struct protstream *
! savemsg(return_path, idptr, notifyptr, sizeptr, smtpmode)
  char *return_path;
  char **idptr;
  char **notifyptr;
  unsigned *sizeptr;
! int smtpmode;
  {
      FILE *f;
      char *hostname = 0;
--- 486,497 ----
  
  
  struct protstream *
! savemsg(return_path, idptr, notifyptr, sizeptr, lmtpmode)
  char *return_path;
  char **idptr;
  char **notifyptr;
  unsigned *sizeptr;
! int lmtpmode;
  {
      FILE *f;
      char *hostname = 0;
***************
*** 504,510 ****
      /* Copy to temp file */
      f = tmpfile();
      if (!f) {
! 	if (smtpmode) {
  	    printf("451 4.3.%c cannot create temporary file: %s\r\n",
  		   (
  #ifdef EDQUOT
--- 508,514 ----
      /* Copy to temp file */
      f = tmpfile();
      if (!f) {
! 	if (lmtpmode) {
  	    printf("451 4.3.%c cannot create temporary file: %s\r\n",
  		   (
  #ifdef EDQUOT
***************
*** 517,523 ****
  	exit(EX_TEMPFAIL);
      }
  
!     if (smtpmode) {
  	printf("354 go ahead\r\n");
  	fflush(stdout);
      }
--- 521,527 ----
  	exit(EX_TEMPFAIL);
      }
  
!     if (lmtpmode) {
  	printf("354 go ahead\r\n");
  	fflush(stdout);
      }
***************
*** 561,570 ****
  	    *p = '\0';
  	}
  
! 	if (smtpmode && buf[0] == '.') {
  	    if (buf[1] == '\r' && buf[2] == '\n') {
  		/* End of message */
! 		goto smtpdot;
  	    }
  	    /* Remove the dot-stuffing */
  	    fputs(buf+1, f);
--- 565,579 ----
  	    *p = '\0';
  	}
  
! 	/* Remove any lone CR characters */
! 	while ((p = strchr(buf, '\r')) && p[1] != '\n') {
! 	    strcpy(p, p+1);
! 	}
! 
! 	if (lmtpmode && buf[0] == '.') {
  	    if (buf[1] == '\r' && buf[2] == '\n') {
  		/* End of message */
! 		goto lmtpdot;
  	    }
  	    /* Remove the dot-stuffing */
  	    fputs(buf+1, f);
***************
*** 629,647 ****
  
      }
  
!     if (smtpmode) {
  	/* Got a premature EOF -- toss message and exit */
  	exit(0);
      }
  
!   smtpdot:
      fflush(f);
      if (ferror(f)) {
! 	if (!smtpmode) {
  	    perror("deliver: copying message");
  	    exit(EX_TEMPFAIL);
  	}
! 	while (smtpmode--) {
  	    printf("451 4.3.%c cannot copy message to temporary file: %s\r\n",
  		   (
  #ifdef EDQUOT
--- 638,656 ----
  
      }
  
!     if (lmtpmode) {
  	/* Got a premature EOF -- toss message and exit */
  	exit(0);
      }
  
!   lmtpdot:
      fflush(f);
      if (ferror(f)) {
! 	if (!lmtpmode) {
  	    perror("deliver: copying message");
  	    exit(EX_TEMPFAIL);
  	}
! 	while (lmtpmode--) {
  	    printf("451 4.3.%c cannot copy message to temporary file: %s\r\n",
  		   (
  #ifdef EDQUOT
***************
*** 654,664 ****
  	return 0;
      }
      if (fstat(fileno(f), &sbuf) == -1) {
! 	if (!smtpmode) {
  	    perror("deliver: stating message");
  	    exit(EX_TEMPFAIL);
  	}
! 	while (smtpmode--) {
  	    printf("451 4.3.2 cannot stat message temporary file: %s\r\n",
  		   error_message(errno));
  	}
--- 663,673 ----
  	return 0;
      }
      if (fstat(fileno(f), &sbuf) == -1) {
! 	if (!lmtpmode) {
  	    perror("deliver: stating message");
  	    exit(EX_TEMPFAIL);
  	}
! 	while (lmtpmode--) {
  	    printf("451 4.3.2 cannot stat message temporary file: %s\r\n",
  		   error_message(errno));
  	}
***************
*** 810,816 ****
      return EX_SOFTWARE;
  }	
  
! char *convert_smtp(r)
  int r;
  {
      switch (r) {
--- 819,825 ----
      return EX_SOFTWARE;
  }	
  
! char *convert_lmtp(r)
  int r;
  {
      switch (r) {
diff -cr imapd-1.4.10/imap/krbck.c imapd-1.4.11/imap/krbck.c
*** imapd-1.4.10/imap/krbck.c	Tue Jul 30 17:01:03 1996
--- imapd-1.4.11/imap/krbck.c	Wed Jul 31 17:46:57 1996
***************
*** 323,331 ****
--- 323,333 ----
  	case INTK_PROT:
  	    printf("\terror code indicates wrong protocol version (INTK_PROT)\n.");
  	    break;
+ #ifdef INTK_PW_NULL
  	case INTK_PW_NULL:
  	    printf("\terror code indicates password was NULL\n");
  	    break;
+ #endif
  	case INTK_BADPW:
  	    printf("\terror code indicates bad password -- imap.%s@%s passwd in srvtab doesn't match kerberos database (INTK_BADPW)\n",
  		   phost, realm);
diff -cr imapd-1.4.10/imap/mailbox.c imapd-1.4.11/imap/mailbox.c
*** imapd-1.4.10/imap/mailbox.c	Thu Jul 11 13:51:47 1996
--- imapd-1.4.11/imap/mailbox.c	Wed Jul 31 17:45:53 1996
***************
*** 27,32 ****
--- 27,35 ----
   *
   */
  
+ #ifdef HAVE_UNISTD_H
+ #include <unistd.h>
+ #endif
  #include <stdio.h>
  #include <string.h>
  #include <errno.h>
diff -cr imapd-1.4.10/imap/mboxlist.c imapd-1.4.11/imap/mboxlist.c
*** imapd-1.4.10/imap/mboxlist.c	Mon Jul  8 17:19:05 1996
--- imapd-1.4.11/imap/mboxlist.c	Thu Aug 29 17:13:20 1996
***************
*** 668,674 ****
  	else {
  	    /* Even admins can't rename users */
  	    mboxlist_unlock();
! 	    return IMAP_PERMISSION_DENIED;
  	}
      }
      else {
--- 668,674 ----
  	else {
  	    /* Even admins can't rename users */
  	    mboxlist_unlock();
! 	    return IMAP_MAILBOX_NOTSUPPORTED;
  	}
      }
      else {
***************
*** 1506,1512 ****
      quota.root = quota_path + strlen(quota_path);
      strcpy(quota.root, root);
  
!     if (quota.fd = open(quota_path, O_RDWR, 0)) {
  	/* Just lock and change it */
  	r = mailbox_lock_quota(&quota);
  
--- 1506,1512 ----
      quota.root = quota_path + strlen(quota_path);
      strcpy(quota.root, root);
  
!     if ((quota.fd = open(quota_path, O_RDWR, 0)) != -1) {
  	/* Just lock and change it */
  	r = mailbox_lock_quota(&quota);
  
diff -cr imapd-1.4.10/imap/message.c imapd-1.4.11/imap/message.c
*** imapd-1.4.10/imap/message.c	Tue Jul 30 17:01:03 1996
--- imapd-1.4.11/imap/message.c	Wed Jul 31 17:46:13 1996
***************
*** 27,32 ****
--- 27,35 ----
   *
   */
  
+ #ifdef HAVE_UNISTD_H
+ #include <unistd.h>
+ #endif
  #include <stdio.h>
  #include <ctype.h>
  #include <string.h>
diff -cr imapd-1.4.10/imap/pop3d.c imapd-1.4.11/imap/pop3d.c
*** imapd-1.4.10/imap/pop3d.c	Wed Jul 24 14:37:43 1996
--- imapd-1.4.11/imap/pop3d.c	Tue Jul 30 12:10:27 1996
***************
*** 778,783 ****
--- 778,787 ----
  	while (buf[strlen(buf)-1] != '\n' && fgets(buf, sizeof(buf), msgfile));
      }
      fclose(msgfile);
+ 
+     /* Protect against messages not ending in CRLF */
+     if (buf[strlen(buf)-1] != '\n') prot_printf(popd_out, "\r\n");
+ 
      prot_printf(popd_out, ".\r\n");
  }
  
diff -cr imapd-1.4.10/imap/quota.c imapd-1.4.11/imap/quota.c
*** imapd-1.4.10/imap/quota.c	Mon Jul  8 17:20:54 1996
--- imapd-1.4.11/imap/quota.c	Wed Aug 28 16:19:04 1996
***************
*** 182,187 ****
--- 182,188 ----
  	      xrealloc((char *)quota, quota_alloc * sizeof(struct quotaentry));
  	}
  	quota[quota_num] = zeroquotaentry;
+ 	quota[quota_num].quota.fd = -1;
  	quota[quota_num].quota.root = xstrdup(dirent->d_name);
  	
  	r = mailbox_read_quota(&quota[quota_num].quota);
***************
*** 239,249 ****
  	}
      }
  
      r = mailbox_open_header(name, 0, &mailbox);
      if (r) return r;
  
      if (thisquota == -1) {
! 	if (!partial && mailbox.quota.root) {
  	    r = fixquota_fixroot(&mailbox, (char *)0);
  	    if (r) {
  		mailbox_close(&mailbox);
--- 240,252 ----
  	}
      }
  
+     if (partial && thisquota == -1) return 0;
+ 
      r = mailbox_open_header(name, 0, &mailbox);
      if (r) return r;
  
      if (thisquota == -1) {
! 	if (mailbox.quota.root) {
  	    r = fixquota_fixroot(&mailbox, (char *)0);
  	    if (r) {
  		mailbox_close(&mailbox);
diff -cr imapd-1.4.10/imap/seen_local.c imapd-1.4.11/imap/seen_local.c
*** imapd-1.4.10/imap/seen_local.c	Tue Jul 30 17:01:04 1996
--- imapd-1.4.11/imap/seen_local.c	Fri Aug  2 12:14:18 1996
***************
*** 734,740 ****
  
  	/* Simplify the iov by coalescing ajacent lines */
  	for (i = 0; i < newiov_num - 1; i++) {
! 	    if (newiov[i].iov_base + newiov[i].iov_len == newiov[i+1].iov_base &&
  		!freenew[i] && !freenew[i]) {
  		newiov[i+1].iov_base = newiov[i].iov_base;
  		newiov[i+1].iov_len += newiov[i].iov_len;
--- 734,740 ----
  
  	/* Simplify the iov by coalescing ajacent lines */
  	for (i = 0; i < newiov_num - 1; i++) {
! 	    if ((char *)newiov[i].iov_base + newiov[i].iov_len == newiov[i+1].iov_base &&
  		!freenew[i] && !freenew[i]) {
  		newiov[i+1].iov_base = newiov[i].iov_base;
  		newiov[i+1].iov_len += newiov[i].iov_len;
diff -cr imapd-1.4.10/imap/version.h imapd-1.4.11/imap/version.h
*** imapd-1.4.10/imap/version.h	Tue Jul 30 17:01:04 1996
--- imapd-1.4.11/imap/version.h	Wed Jul 24 21:04:49 1996
***************
*** 1 ****
! #define CYRUS_VERSION "v1.4.10-Beta"
--- 1 ----
! #define CYRUS_VERSION "v1.4.11-Beta"
diff -cr imapd-1.4.10/lib/acte_krb.c imapd-1.4.11/lib/acte_krb.c
*** imapd-1.4.10/lib/acte_krb.c	Sat May 18 23:16:31 1996
--- imapd-1.4.11/lib/acte_krb.c	Sun Jul 28 14:09:38 1996
***************
*** 204,212 ****
  
      strncpy(instance, host_name->h_name, sizeof(instance)-1);
      instance[sizeof(instance)-1] = '\0';
      if (p = strchr(instance, '.')) *p = '\0';
  
-     strcpy(realm, krb_realmofhost(host_name->h_name));
  
      /* Fetch imap.hostname service key */
      (void) krb_mk_req(&authent, service, instance, realm, 0);
--- 204,212 ----
  
      strncpy(instance, host_name->h_name, sizeof(instance)-1);
      instance[sizeof(instance)-1] = '\0';
+     strcpy(realm, krb_realmofhost(instance));
      if (p = strchr(instance, '.')) *p = '\0';
  
  
      /* Fetch imap.hostname service key */
      (void) krb_mk_req(&authent, service, instance, realm, 0);
diff -cr imapd-1.4.10/lib/auth_unix.c imapd-1.4.11/lib/auth_unix.c
*** imapd-1.4.10/lib/auth_unix.c	Tue Jun 11 10:56:59 1996
--- imapd-1.4.11/lib/auth_unix.c	Wed Jul 24 21:12:50 1996
***************
*** 29,40 ****
  
  #include <pwd.h>
  #include <grp.h>
  
  #include "auth.h"
  #include "xmalloc.h"
  
  struct auth_state {
!     char userid[30];
      char **group;
      int ngroups;
  };
--- 29,41 ----
  
  #include <pwd.h>
  #include <grp.h>
+ #include <ctype.h>
  
  #include "auth.h"
  #include "xmalloc.h"
  
  struct auth_state {
!     char userid[81];
      char **group;
      int ngroups;
  };
***************
*** 79,87 ****
  char *auth_canonifyid(identifier)
  const char *identifier;
  {
!     static char retbuf[30];
!     struct passwd *pwd;
      struct group *grp;
  
      if (strcasecmp(identifier, "anonymous") == 0) {
  	return "anonymous";
--- 80,88 ----
  char *auth_canonifyid(identifier)
  const char *identifier;
  {
!     static char retbuf[81];
      struct group *grp;
+     char *p;
  
      if (strcasecmp(identifier, "anonymous") == 0) {
  	return "anonymous";
***************
*** 102,110 ****
  	return retbuf;
      }
  
!     pwd = getpwnam(retbuf);
!     if (!pwd) return 0;
!     strcpy(retbuf, pwd->pw_name);
      return retbuf;
  }
  
--- 103,119 ----
  	return retbuf;
      }
  
!     if (strlen(identifier) >= sizeof(retbuf)) return 0;
! 
!     p = retbuf;
!     if (!isalpha(*identifier)) return 0;
!     while (*identifier) {
! 	*p = *identifier++;
! 	if (!isalpha(*p) && !isdigit(*p) && *p != '-') return 0;
! 	p++;
!     }
!     *p = 0;
! 
      return retbuf;
  }
  
***************
*** 128,134 ****
      if (!strncmp(identifier, "group:", 6)) return 0;
      
      pwd = getpwnam(identifier);
-     if (!pwd) return 0;
  
      newstate = (struct auth_state *)xmalloc(sizeof(struct auth_state));
  
--- 137,142 ----
***************
*** 141,147 ****
  	    if (!strcmp(*mem, identifier)) break;
  	}
  
! 	if (*mem || pwd->pw_gid == grp->gr_gid) {
  	    newstate->ngroups++;
  	    newstate->group = (char **)xrealloc((char *)newstate->group,
  						newstate->ngroups * sizeof(char *));
--- 149,155 ----
  	    if (!strcmp(*mem, identifier)) break;
  	}
  
! 	if (*mem || (pwd && pwd->pw_gid == grp->gr_gid)) {
  	    newstate->ngroups++;
  	    newstate->group = (char **)xrealloc((char *)newstate->group,
  						newstate->ngroups * sizeof(char *));
diff -cr imapd-1.4.10/lib/prot.c imapd-1.4.11/lib/prot.c
*** imapd-1.4.10/lib/prot.c	Fri Jul 12 14:42:41 1996
--- imapd-1.4.11/lib/prot.c	Thu Aug 29 17:15:16 1996
***************
*** 69,74 ****
--- 69,77 ----
      newstream->error = 0;
      newstream->eof = 0;
      newstream->read_timeout = 0;
+     newstream->flushonread = 0;
+     newstream->readcallback_proc = 0;
+     newstream->readcallback_rock = 0;
  
      return newstream;
  }
diff -cr imapd-1.4.10/lib/retry.c imapd-1.4.11/lib/retry.c
*** imapd-1.4.10/lib/retry.c	Wed Jul 24 15:20:47 1996
--- imapd-1.4.11/lib/retry.c	Thu Aug  1 18:04:26 1996
***************
*** 115,121 ****
  
  	for (i = 0; i < iovcnt; i++) {
  	    if (iov[i].iov_len > n) {
! 		iov[i].iov_base += n;
  		iov[i].iov_len -= n;
  		break;
  	    }
--- 115,121 ----
  
  	for (i = 0; i < iovcnt; i++) {
  	    if (iov[i].iov_len > n) {
! 		iov[i].iov_base = (char *)iov[i].iov_base + n;
  		iov[i].iov_len -= n;
  		break;
  	    }
diff -cr imapd-1.4.10/man/deliver.8 imapd-1.4.11/man/deliver.8
*** imapd-1.4.10/man/deliver.8	Tue Jul  2 11:51:42 1996
--- imapd-1.4.11/man/deliver.8	Sun Jul 28 15:37:54 1996
***************
*** 63,68 ****
--- 63,77 ----
  ]...
  .br
  .B deliver
+ .B \-l
+ [
+ .B \-e
+ ]
+ [
+ .B \-q
+ ]
+ .br
+ .B deliver
  .B \-E
  .I days
  .SH DESCRIPTION
***************
*** 134,139 ****
--- 143,150 ----
  Set the system flag or keyword
  .I flag
  on the delivered message.
+ .B \-l
+ Accept messages using the LMTP protocol.
  .TP
  .BI \-E " days"
  Prune the duplicate delivery database of entries older than