Upon thinking, the variable names may not be descriptive enough as host is a bit ambiguous and deleted_count may refer to a different command than expunge in imap and may be valid to track at some point so I have changed host to client_ip and deleted_count in imap to expunged_count, below is the modified diff for version 1.2.11.

diff -crB dovecot-1.2.11.orig/src/imap/client.c dovecot-1.2.11/src/imap/client.c *** dovecot-1.2.11.orig/src/imap/client.c 2010-01-24 16:14:17.000000000 -0700 --- dovecot-1.2.11/src/imap/client.c 2010-05-20 09:30:47.170407921 -0600

*** 42,47 **** --- 42,48 ---- client->fd_out = fd_out; client->input = i_stream_create_fd(fd_in, imap_max_line_length, FALSE); client->output = o_stream_create_fd(fd_out, (size_t)-1, FALSE);

• client->expunged = 0;

  o_stream_set_flush_callback(client->output, client_output, client);

*** 105,110 **** --- 106,113 ---- static struct var_expand_table static_tab[] = { { 'i', NULL, "input" }, { 'o', NULL, "output" },

•   { 'c', NULL, "client_ip" },

•   { 'e', NULL, "expunged_count" },
    { '\0', NULL, NULL }

  }; struct var_expand_table *tab;

*** 115,120 **** --- 118,125 ----

tab[0].value = dec2str(client->input->v_offset);
tab[1].value = dec2str(client->output->offset);

• tab[2].value = getenv("IP") ? getenv("IP") : "Unknown";

• tab[3].value = dec2str(client->expunged);

  str = t_str_new(128); var_expand(str, logout_format, tab); diff -crB dovecot-1.2.11.orig/src/imap/client.h dovecot-1.2.11/src/imap/client.h *** dovecot-1.2.11.orig/src/imap/client.h 2009-06-26 22:49:34.000000000 -0600 --- dovecot-1.2.11/src/imap/client.h 2010-05-19 16:26:31.529833893 -0600

*** 133,138 **** --- 133,139 ---- unsigned int destroyed:1; unsigned int handling_input:1; unsigned int syncing:1;

• unsigned int expunged; unsigned int id_logged:1; unsigned int mailbox_examined:1; unsigned int input_skip_line:1; /* skip all the data until we've diff -crB dovecot-1.2.11.orig/src/imap/cmd-close.c dovecot-1.2.11/src/imap/cmd-close.c *** dovecot-1.2.11.orig/src/imap/cmd-close.c 2010-01-24 16:14:17.000000000 -0700 --- dovecot-1.2.11/src/imap/cmd-close.c 2010-05-19 16:26:31.529833893 -0600

*** 18,24 **** client->mailbox = NULL;

storage = mailbox_get_storage(mailbox);

! if ((ret = imap_expunge(mailbox, NULL)) < 0) client_send_untagged_storage_error(client, storage); if (mailbox_sync(mailbox, 0, 0, NULL) < 0) client_send_untagged_storage_error(client, storage); --- 18,24 ---- client->mailbox = NULL;

storage = mailbox_get_storage(mailbox);

! if ((ret = imap_expunge(client, NULL)) < 0) client_send_untagged_storage_error(client, storage); if (mailbox_sync(mailbox, 0, 0, NULL) < 0) client_send_untagged_storage_error(client, storage); diff -crB dovecot-1.2.11.orig/src/imap/cmd-expunge.c dovecot-1.2.11/src/imap/cmd-expunge.c *** dovecot-1.2.11.orig/src/imap/cmd-expunge.c 2010-01-24 16:14:17.000000000 -0700 --- dovecot-1.2.11/src/imap/cmd-expunge.c 2010-05-19 16:26:31.529833893 -0600

*** 24,30 **** { struct client *client = cmd->client;

! if (imap_expunge(client->mailbox, search_args == NULL ? NULL : search_args->args) < 0) { client_send_storage_error(cmd, mailbox_get_storage(client->mailbox)); --- 24,30 ---- { struct client *client = cmd->client;

! if (imap_expunge(client, search_args == NULL ? NULL : search_args->args) < 0) { client_send_storage_error(cmd, mailbox_get_storage(client->mailbox)); diff -crB dovecot-1.2.11.orig/src/imap/imap-expunge.c dovecot-1.2.11/src/imap/imap-expunge.c *** dovecot-1.2.11.orig/src/imap/imap-expunge.c 2010-01-24 16:14:17.000000000 -0700 --- dovecot-1.2.11/src/imap/imap-expunge.c 2010-05-19 16:26:31.529833893 -0600

*** 5,18 **** #include "mail-search-build.h" #include "imap-expunge.h"

! int imap_expunge(struct mailbox *box, struct mail_search_arg *next_search_arg) { struct mail_search_context *ctx; struct mailbox_transaction_context *t; struct mail *mail; struct mail_search_args *search_args; bool expunges = FALSE;

if (mailbox_is_readonly(box)) {
	/* silently ignore */
	return 0;

--- 5,21 ---- #include "mail-search-build.h" #include "imap-expunge.h"

! int imap_expunge(struct client *client, struct mail_search_arg *next_search_arg) { struct mail_search_context *ctx; struct mailbox_transaction_context *t; struct mail *mail;

• struct mailbox *box; struct mail_search_args *search_args; bool expunges = FALSE;

• box = client->mailbox;

• if (mailbox_is_readonly(box)) { /* silently ignore */ return 0; diff -crB dovecot-1.2.11.orig/src/imap/imap-expunge.h dovecot-1.2.11/src/imap/imap-expunge.h *** dovecot-1.2.11.orig/src/imap/imap-expunge.h 2008-06-08 21:14:46.000000000 -0600 --- dovecot-1.2.11/src/imap/imap-expunge.h 2010-05-19 16:26:31.529833893 -0600

*** 3,8 ****

struct mail_search_arg;

! int imap_expunge(struct mailbox *box, struct mail_search_arg *next_search_arg);

#endif --- 3,8 ----

struct mail_search_arg;

! int imap_expunge(struct client *client, struct mail_search_arg *next_search_arg);

#endif Only in dovecot-1.2.11.orig/src/lib-sql: sql-drivers-register.c diff -crB dovecot-1.2.11.orig/src/pop3/client.c dovecot-1.2.11/src/pop3/client.c *** dovecot-1.2.11.orig/src/pop3/client.c 2010-01-24 16:14:17.000000000 -0700 --- dovecot-1.2.11/src/pop3/client.c 2010-05-20 09:31:01.400409195 -0600

*** 238,243 **** --- 238,244 ---- { 's', NULL, "message_bytes" }, { 'i', NULL, "input" }, { 'o', NULL, "output" },

•   { 'c', NULL, "client_ip" },
    { '\0', NULL, NULL }

  }; struct var_expand_table *tab;

*** 255,260 **** --- 256,262 ---- tab[6].value = dec2str(client->total_size); tab[7].value = dec2str(client->input->v_offset); tab[8].value = dec2str(client->output->offset);

• tab[9].value = getenv("IP") ? getenv("IP") : "Unknown";

  str = t_str_new(128); var_expand(str, logout_format, tab);