diff --git a/src/main.sh b/src/main.sh
index f301ef6..209d5a0 100755
--- a/src/main.sh
+++ b/src/main.sh
@@ -5,6 +5,12 @@ set -eu
 # Application info
 . "sh/info.sh"
 
+# helper functions
+. "sh/helper.sh"
+
+# tools
+. "sh/tools.sh"
+
 # Configuration
 . "sh/config.sh"
 
@@ -14,9 +20,6 @@ set -eu
 # awk scripts
 . "sh/awk.sh"
 
-# tools
-. "sh/tools.sh"
-
 # query history
 . "sh/history.sh"
 
@@ -38,6 +41,9 @@ set -eu
 # keys
 . "sh/keys.sh"
 
+# send emails
+. "sh/send.sh"
+
 if [ "${1:-}" = "--list-threads" ]; then
   shift
   nmquery="$1"
@@ -153,6 +159,27 @@ if [ "${1:-}" = "--undelete" ]; then
   exit
 fi
 
+if [ "${1:-}" = "--flag" ]; then
+  shift
+  [ "$1" = "thread" ] && thread=1
+  shift
+  [ "${thread:-}" ] && field="thread" || field="id"
+  query="$(echo " $@" | sed "s/\s\(\S\)/ $field:\1/g")"
+  $NOTMUCH tag +"$TAG_FLAGGED" "$query"
+  exit
+fi
+
+if [ "${1:-}" = "--unflag" ]; then
+  shift
+  [ "$1" = "thread" ] && thread=1
+  shift
+  [ "${thread:-}" ] && field="thread" || field="id"
+  query="$(echo " $@" | sed "s/\s\(\S\)/ $field:\1/g")"
+  $NOTMUCH tag -"$TAG_FLAGGED" "$query"
+  exit
+fi
+
+
 if [ "${1:-}" = "--purge" ]; then
   shift
   # query="$(echo " $@" | sed "s/\s\(\S*\)/ (thread:\1 and tag:del)/g" | sed 's/)\(\s\+\)(/) or (/g')"
@@ -226,9 +253,11 @@ if [ "${1:-}" = "--show-thread" ]; then
     --bind="$KEYS_ARCHIVE:execute($0 --archive message {+5})+reload:$0 --list-messages-in-thread \"$thread\"" \
     --bind="$KEYS_DELETE:execute($0 --delete message {+5})+reload:$0 --list-messages-in-thread \"$thread\"" \
     --bind="$KEYS_OPEN:execute:$0 --open-part {5}" \
-    --bind="$KEYS_FLAG_TOGGLE:execute:echo NOT IMPLEMENTED;read -r t" \
-    --bind="$KEYS_REPLY:execute:echo NOT IMPLEMENTED;read -r t" \
-    --bind="$KEYS_COMPOSE:execute:echo NOT IMPLEMENTED;read -r t" \
+    --bind="$KEYS_FLAG:execute($0 --flag message {+5})+reload:$0 --list-messages-in-thread \"$thread\"" \
+    --bind="$KEYS_UNFLAG:execute($0 --unflag message {+5})+reload:$0 --list-messages-in-thread \"$thread\"" \
+    --bind="$KEYS_REPLY:execute:$0 --reply {5}" \
+    --bind="$KEYS_VIEW_LOGS:execute:$0 --view-logs" \
+    --bind="$KEYS_COMPOSE:execute:$0 --compose" \
     --bind="focus:change-preview($0 --preview-message {5})+transform-footer:printf '\033[4mMesssage parts\033[0m\n';$0 --show-message-parts {5}" \
     --preview="$0 --preview-message {5}" \
     --preview-window="$FZF_DEFAULT_PREVIEW_WINDOW" || true)
@@ -255,10 +284,100 @@ if [ "${1:-}" = "--list-deleted" ]; then
     --bind="$KEYS_ENTER:" \
     --bind="$KEYS_PURGE_ALL:select-all+execute($0 --purge {+4})+reload:$0 --list-threads \"tag:$TAG_DEL\"" \
     --bind="$KEYS_DELETE:execute($0 --purge {+4})+reload:$0 --list-threads \"tag:$TAG_DEL\"" \
-    --bind="$KEYS_ENTER_ALTERNATIVE:execute($0 --undelete {+4})+reload:$0 --list-threads \"tag:$TAG_DEL\""
+    --bind="$KEYS_ENTER_ALTERNATIVE:execute($0 --undelete {+4})+reload:$0 --list-threads \"tag:$TAG_DEL\"" \
+    --bind="$KEYS_VIEW_LOGS:execute:$0 --view-logs"
   exit
 fi
 
+if [ "${1:-}" = "--compose" ]; then
+  label_text="  Select sender  "
+  address=$(list_addresses | $FZF \
+    --delimiter="$(printf '\t')" \
+    --with-nth=2 \
+    --accept-nth=1 \
+    --color="label:$ANSICOLORFROM" \
+    --tiebreak=index \
+    --margin='20%' \
+    --bind="$KEYS_DOWN_HP:half-page-down" \
+    --bind="$KEYS_UP_HP:half-page-up" \
+    --bind="$KEYS_ENTER:accept-or-print-query" \
+    --bind="$KEYS_ENTER_ALTERNATIVE:transform:echo \"print(\$FZF_QUERY)+accept\"" \
+    --bind="$KEYS_CANCEL:print()+accept" \
+    --border=double \
+    --border-label="$label_text" | head -1 || true)
+  tmpfile=$(mktemp --suffix='.eml')
+  {
+    echo "From: $PRIMARY_NAME <$PRIMARY_EMAIL>"
+    echo "To: $address"
+    echo "Cc: "
+    echo "Subject: "
+    echo ""
+    echo "Message body goes here"
+  } > "$tmpfile"
+  $EDITOR "$tmpfile"
+  # Confirm and send
+  send "$tmpfile"
+  rm -f "$tmpfile"
+  exit
+fi
+
+if [ "${1:-}" = "--reply" ]; then
+  shift
+  messageid="$1"
+  tmpfile=$(mktemp --suffix='.eml')
+  $NOTMUCH reply id:"$messageid" > "$tmpfile"
+  $EDITOR "$tmpfile"
+  # Confirm and send
+  send "$tmpfile"
+  rm -f "$tmpfile"
+  exit
+fi
+
+if [ "${1:-}" = "--sync" ]; then
+  $NOTMUCH new && $MBSYNC -a && $NOTMUCH new
+  exit
+fi
+
+if [ "${1:-}" = "--send-test-email" ]; then
+  tmpfile=$(mktemp --suffix='.eml')
+  {
+    echo "From: $PRIMARY_NAME <$PRIMARY_EMAIL>"
+    echo "To: $PRIMARY_NAME <$PRIMARY_EMAIL>"
+    echo "Subject: Test E-Mail from $APP_NAME version $APP_VERSION"
+    echo ""
+    echo "This is a test email sent from from [$APP_NAME]($APP_WEBSITE)."
+  } > "$tmpfile"
+  send "$tmpfile" "force"
+  rm -f "$tmpfile"
+  exit
+fi
+
+if [ "${1:-}" = "--view-logs" ]; then
+  shift
+  printf "0 Send test message\n1 Close\n" |
+    $FZF \
+    --sync \
+    --bind='start:pos(2)' \
+    --bind='ctrl-c,ctrl-g,ctrl-q,esc:pos(2)+accept' \
+    --bind="enter:transform: [ {1} = 0 ] && $0 --send-test-email || echo accept" \
+    --reverse \
+    --no-input \
+    --header="Here are the latest SMTP logs" \
+    --preview-window='60%,border-line,wrap-word,follow,noinfo' \
+    --margin='5%,5%,5%,15%' \
+    --preview="tail -f \"$SMTPLOGFILE\" | $CATLOG" \
+    --with-nth=2.. \
+    --accept-nth=1 \
+    --header-border='line' \
+    --color='border:yellow,header:yellow' || true
+  exit
+fi
+
+# Set terminal title
+if [ "$SET_TERMINAL_TITLE" = "yes" ]; then
+  printf '\033]0;%s\007' "$WINDOW_TITLE"
+fi
+
 # Modes
 APPEND="append"
 NWSRCH="search"
@@ -268,11 +387,14 @@ ADDRESS_FROM="from-"
 CMD_SEARCH_ADDRESS="address-"
 CMD_EDIT_QUERY="edit-query"
 CMD_GOTO_INBOX="go-to-inbox"
+CMD_GOTO_UNREAD="go-to-unread"
+CMD_GOTO_FLAGGED="go-to-flagged"
 
 while true; do
   nmquery="${nmquery:-tag:$TAG_INBOX}"
   [ "$(tail -1 "$NMFHIST")" = "$nmquery" ] || echo "$nmquery" >> "$NMFHIST"
   cmd=$(list_threads "$nmquery" | $FZF \
+    --no-clear \
     --header-first \
     --header="Query: $nmquery" \
     --tiebreak=index \
@@ -301,8 +423,15 @@ while true; do
     --bind="$KEYS_TAG_REMOVE:execute($0 --tag-modify thread del {+4})+reload:$0 --list-threads \"$nmquery\"" \
     --bind="$KEYS_ARCHIVE:execute($0 --archive thread {+4})+reload:$0 --list-threads \"$nmquery\"" \
     --bind="$KEYS_DELETE:execute($0 --delete thread {+4})+reload:$0 --list-threads \"$nmquery\"" \
+    --bind="$KEYS_FLAG:execute($0 --flag thread {+4})+reload:$0 --list-threads \"$nmquery\"" \
+    --bind="$KEYS_UNFLAG:execute($0 --unflag thread {+4})+reload:$0 --list-threads \"$nmquery\"" \
     --bind="$KEYS_SEARCH_DELETED:execute:$0 --list-deleted" \
     --bind="$KEYS_SEARCH_INBOX:print($CMD_GOTO_INBOX)+accept" \
+    --bind="$KEYS_SEARCH_UNREAD:print($CMD_GOTO_UNREAD)+accept" \
+    --bind="$KEYS_SEARCH_FLAGGED:print($CMD_GOTO_FLAGGED)+accept" \
+    --bind="$KEYS_VIEW_LOGS:execute:$0 --view-logs" \
+    --bind="$KEYS_SYNC:execute($0 --sync)+reload:$0 --list-threads \"$nmquery\"" \
+    --bind="$KEYS_COMPOSE:execute:$0 --compose" \
     --bind="focus:change-preview:$0 --preview-thread {4}" \
     --preview="$0 --preview-thread {4}" \
     --preview-window="$FZF_DEFAULT_PREVIEW_WINDOW" | head -1 || true)
@@ -335,7 +464,9 @@ while true; do
 	  ;;
       esac
       address=$(list_addresses | $FZF \
-	--color="border:$ANSICOLORFROM" \
+	--delimiter="$(printf '\t')" \
+	--with-nth=2 \
+	--accept-nth=1 \
 	--color="label:$ANSICOLORFROM" \
 	--tiebreak=index \
 	--margin='20%' \
@@ -372,9 +503,9 @@ while true; do
 	--border=double \
 	--border-label='  Query history  ' | head -1 || true)
       ;;
-    $CMD_GOTO_INBOX)
-      nmquery="tag:$TAG_INBOX"
-      ;;
+    $CMD_GOTO_INBOX) nmquery="tag:$TAG_INBOX" ;;
+    $CMD_GOTO_UNREAD) nmquery="tag:$TAG_UNREAD" ;;
+    $CMD_GOTO_FLAGGED) nmquery="tag:$TAG_FLAGGED" ;;
     *)
       ;;
   esac
diff --git a/src/sh/config.sh b/src/sh/config.sh
index b71d2be..7d58684 100644
--- a/src/sh/config.sh
+++ b/src/sh/config.sh
@@ -1,11 +1,26 @@
-# Main application configuration. This application does not require a
-# configuration file. However, a configuration file may be stored as
-# `CONFIGFILE_DEFAULT`. If that file exists, it will be sourced. The path to
-# the file may be overwritten by specifying the environment variable
-# `CONFIGFILE`. If a configuration file is specified, then it must also exist.
-# A configuration file comprises the specification of environment variables
-# that are allowed to be set.
-CONFIGFILE_DEFAULT="${XDG_CONFIG_HOME:-"$HOME/.config"}/$APP_NAME/config"
-CONFIGFILE="${CONFIGFILE:-"$CONFIGFILE_DEFAULT"}"
-[ "$CONFIGFILE" != "$CONFIGFILE_DEFAULT" ] && [ ! -f "$CONFIGFILE" ] && err "The configuration file manually specified with the environment variable CONFIGFILE=($CONFIGFILE) does not exist." && exit 1
-[ -f "$CONFIGFILE" ] && . "$CONFIGFILE"
+if [ ! "${CONFIG_LOADED:-}" ]; then
+  # Main application configuration. This application does not require a
+  # configuration file. However, a configuration file may be stored as
+  # `CONFIGFILE_DEFAULT`. If that file exists, it will be sourced. The path to
+  # the file may be overwritten by specifying the environment variable
+  # `CONFIGFILE`. If a configuration file is specified, then it must also exist.
+  # A configuration file comprises the specification of environment variables
+  # that are allowed to be set.
+  CONFIGFILE_DEFAULT="${XDG_CONFIG_HOME:-"$HOME/.config"}/$APP_NAME/config"
+  CONFIGFILE="${CONFIGFILE:-"$CONFIGFILE_DEFAULT"}"
+  [ "$CONFIGFILE" != "$CONFIGFILE_DEFAULT" ] && [ ! -f "$CONFIGFILE" ] && err "The configuration file manually specified with the environment variable CONFIGFILE=($CONFIGFILE) does not exist." && exit 1
+  [ -f "$CONFIGFILE" ] && . "$CONFIGFILE"
+  SET_TERMINAL_TITLE="${SET_TERMINAL_TITLE:-yes}"
+
+  PRIMARY_NAME=${PRIMARY_NAME:-$($NOTMUCH config get user.name)}
+  PRIMARY_EMAIL=${PRIMARY_EMAIL:-$($NOTMUCH config get user.primary_email)}
+
+  if [ ! "${SMTPLOGFILE:-}" ]; then
+    SMTPLOGFILE=$(mktemp)
+    trap 'rm -f "$SMTPLOGFILE"' EXIT INT
+  fi
+
+  export PRIMARY_NAME PRIMARY_EMAIL SET_TERMINAL_TITLE SMTPLOGFILE
+
+  export CONFIG_LOADED=1
+fi
diff --git a/src/sh/email.sh b/src/sh/email.sh
new file mode 100644
index 0000000..e69de29
diff --git a/src/sh/helper.sh b/src/sh/helper.sh
new file mode 100644
index 0000000..38a6ba1
--- /dev/null
+++ b/src/sh/helper.sh
@@ -0,0 +1,5 @@
+# Print error message
+err() {
+  echo "$APP_NAME ERROR: $1" > /dev/stderr
+}
+
diff --git a/src/sh/history.sh b/src/sh/history.sh
index 33aeffd..756daee 100644
--- a/src/sh/history.sh
+++ b/src/sh/history.sh
@@ -2,5 +2,6 @@ if [ ! "${HISTORY_LOADED:-}" ]; then
   export NMFHIST=$(mktemp)
   touch "$NMFHIST"
   trap 'rm -f "$NMFHIST"' EXIT INT
+
   export HISTORY_LOADED=1
 fi
diff --git a/src/sh/keys.sh b/src/sh/keys.sh
index 343fe14..c8cc0b3 100644
--- a/src/sh/keys.sh
+++ b/src/sh/keys.sh
@@ -1,43 +1,63 @@
-# This file defines the keys used in the keybindings
-# The keys are comma separated. See `fzf --man` for the possible keys.
+if [ ! "${KEYS_LOADED:-}" ]; then
+  # This file defines the keys used in the keybindings
+  # The keys are comma separated. See `fzf --man` for the possible keys.
 
-# List
-KEYS_DOWN_HP="ctrl-d"
-KEYS_UP_HP="ctrl-u"
-KEYS_BACK="ctrl-h"
-KEYS_ENTER="enter,ctrl-l"
-KEYS_CANCEL="esc"
-KEYS_ENTER_ALTERNATIVE="alt-enter"
-KEYS_CYCLE_DISPLAY="ctrl-space"
+  # List
+  KEYS_DOWN_HP="ctrl-d"
+  KEYS_UP_HP="ctrl-u"
+  KEYS_BACK="ctrl-h"
+  KEYS_ENTER="enter,ctrl-l"
+  KEYS_CANCEL="esc"
+  KEYS_ENTER_ALTERNATIVE="alt-enter"
+  KEYS_CYCLE_DISPLAY="ctrl-space"
 
-KEYS_VIEW_SOURCE="alt-v"
-KEYS_HTML_PREVIEW="alt-h"
-KEYS_TAG_ADD="alt-+"
-KEYS_TAG_REMOVE="alt--"
-KEYS_ARCHIVE="ctrl-a"
-KEYS_DELETE="ctrl-delete"
-KEYS_FLAG_TOGGLE="ctrl-x"
-KEYS_OPEN="ctrl-o"
-KEYS_REPLY="ctrl-r"
-KEYS_COMPOSE="ctrl-n"
+  KEYS_VIEW_SOURCE="alt-v"
+  KEYS_HTML_PREVIEW="alt-h"
+  KEYS_TAG_ADD="alt-+"
+  KEYS_TAG_REMOVE="alt--"
+  KEYS_ARCHIVE="ctrl-a"
+  KEYS_DELETE="ctrl-delete"
+  KEYS_FLAG="ctrl-x"
+  KEYS_UNFLAG="ctrl-alt-x"
+  KEYS_OPEN="ctrl-o"
+  KEYS_REPLY="ctrl-r"
+  KEYS_COMPOSE="ctrl-n"
+  KEYS_VIEW_LOGS="alt-0"
+  KEYS_SYNC="ctrl-s"
 
-# Preview window
-KEYS_PREVIEW_DOWN="alt-j"
-KEYS_PREVIEW_UP="alt-k"
-KEYS_PREVIEW_DOWN_HP="page-up"
-KEYS_PREVIEW_UP_HP="page-down"
-KEYS_PREVIEW_TOGGLE_SIZE="alt-/"
+  # Preview window
+  KEYS_PREVIEW_DOWN="alt-j"
+  KEYS_PREVIEW_UP="alt-k"
+  KEYS_PREVIEW_DOWN_HP="page-up"
+  KEYS_PREVIEW_UP_HP="page-down"
+  KEYS_PREVIEW_TOGGLE_SIZE="alt-/"
 
-# Keys specific to purge window
-KEYS_PURGE_ALL="ctrl-alt-d"
+  # Keys specific to purge window
+  KEYS_PURGE_ALL="ctrl-alt-d"
 
-# Change main views
-KEYS_SEARCH_TAG_REPLCE="alt-t"
-KEYS_SEARCH_TAG_APPEND="alt-T"
-KEYS_SEARCH_FROM_REPLCE="alt-s"
-KEYS_SEARCH_FROM_APPEND="alt-S"
-KEYS_SEARCH_TO_REPLCE="alt-r"
-KEYS_SEARCH_TO_APPEND="alt-R"
-KEYS_SEARCH_EDIT_QUERY="alt-q"
-KEYS_SEARCH_DELETED="alt-d"
-KEYS_SEARCH_INBOX="alt-1"
+  # Change main views
+  KEYS_SEARCH_TAG_REPLCE="alt-t"
+  KEYS_SEARCH_TAG_APPEND="alt-T"
+  KEYS_SEARCH_FROM_REPLCE="alt-s"
+  KEYS_SEARCH_FROM_APPEND="alt-S"
+  KEYS_SEARCH_TO_REPLCE="alt-r"
+  KEYS_SEARCH_TO_APPEND="alt-R"
+  KEYS_SEARCH_EDIT_QUERY="alt-q"
+  KEYS_SEARCH_DELETED="alt-d"
+  KEYS_SEARCH_INBOX="alt-1"
+  KEYS_SEARCH_UNREAD="alt-2"
+  KEYS_SEARCH_FLAGGED="alt-3"
+
+  export KEYS_DOWN_HP KEYS_UP_HP KEYS_BACK KEYS_ENTER KEYS_CANCEL \
+    KEYS_ENTER_ALTERNATIVE KEYS_CYCLE_DISPLAY KEYS_VIEW_SOURCE \
+    KEYS_HTML_PREVIEW KEYS_TAG_ADD KEYS_TAG_REMOVE KEYS_ARCHIVE KEYS_DELETE \
+    KEYS_FLAG KEYS_UNFLAG KEYS_OPEN KEYS_REPLY KEYS_COMPOSE KEYS_VIEW_LOGS \
+    KEYS_SYNC KEYS_PREVIEW_DOWN KEYS_PREVIEW_UP KEYS_PREVIEW_DOWN_HP \
+    KEYS_PREVIEW_UP_HP KEYS_PREVIEW_TOGGLE_SIZE KEYS_SEARCH_TAG_REPLCE \
+    KEYS_SEARCH_TAG_APPEND KEYS_SEARCH_FROM_REPLCE KEYS_SEARCH_FROM_APPEND \
+    KEYS_SEARCH_TO_REPLCE KEYS_SEARCH_TO_APPEND KEYS_SEARCH_EDIT_QUERY \
+    KEYS_SEARCH_DELETED KEYS_SEARCH_INBOX KEYS_SEARCH_UNREAD \
+    KEYS_SEARCH_FLAGGED
+
+  export KEYS_LOADED=1
+fi
diff --git a/src/sh/lists.sh b/src/sh/lists.sh
index c14e384..62ab528 100644
--- a/src/sh/lists.sh
+++ b/src/sh/lists.sh
@@ -3,7 +3,7 @@
 # List the messages within a thread
 # @argument $1: thread id
 list_messages_in_thread() {
-  $NOTMUCH show thread:"$1" \
+  $NOTMUCH show --body=false thread:"$1" \
     | awk "$AWK_THREADOVERVIEW" \
     | sed "s/^\(\S*\)\t\([^\t]*\)\t\(.*\) (\([^()]*\)) (\([^()]*\))$/${COLFROM}\3${COLRESET}\t${COLSUBJ}\2${COLRESET}\t${COLDATE}\4${COLRESET}\t${COLTAGS}\5${COLRESET}\t\1/"
 }
@@ -26,7 +26,7 @@ list_tags() {
 
 # List all email addresses
 list_addresses() {
-  $NOTMUCH address '*'
+  $NOTMUCH address '*' | sed "s/^\(.*[^>]\) \?\(<.*>\)\?$/\1 \2\t${COLFROM}\1${COLRESET} ${COLSUBJ}\2${COLRESET}/"
 }
 
 # List query history
diff --git a/src/sh/notmuch.sh b/src/sh/notmuch.sh
index 84dc863..692c124 100644
--- a/src/sh/notmuch.sh
+++ b/src/sh/notmuch.sh
@@ -10,7 +10,7 @@ nm_new() {
 # @argument $1: thread id
 nm_last_message_in_thread() {
   # TODO: We may be smarter here that just incorporating excluded messages
-  $NOTMUCH search --output=messages --offset=-1 thread:"$1" | sed 's/^...//'
+  $NOTMUCH search --output=messages --sort=oldest-first --offset=-1 thread:"$1" | sed 's/^...//'
 }
 
 # Print the header of a message (with trailing empty line)
diff --git a/src/sh/send.sh b/src/sh/send.sh
new file mode 100644
index 0000000..a53ca18
--- /dev/null
+++ b/src/sh/send.sh
@@ -0,0 +1,20 @@
+# Send email
+# @argument $1: Path to email file
+# @argument $2: if set, don't prompt the user (optional)
+send() {
+  if [ ! "${2:-}" ] && ! ynprompt "Do you want to send this email?" "$($CATEMAIL $tmpfile)"; then
+    return
+  fi
+  $MSMTP -t --read-envelope-from -X "$SMTPLOGFILE" < "$1" >/dev/null 2>&1 || true
+  log=$(tail -1 "$SMTPLOGFILE")
+  if [ "${2:-}" ] || echo -n "$log" | grep -q '\bsmtpstatus=250\b'; then
+    return
+  fi
+  # Handle errors
+  res=$(printf "0 Retry\n1 Edit email\n2 Abort\n" | multiprompt "Could not send the email. What's next?" "$(echo "$log" | $CATLOG)")
+  case "$res" in
+    0) send "$1" ;;
+    1) $EDITOR "$1"; send "$1" ;;
+    2) return ;;
+  esac
+}
diff --git a/src/sh/tags.sh b/src/sh/tags.sh
index 5e40fb6..5d40b6b 100644
--- a/src/sh/tags.sh
+++ b/src/sh/tags.sh
@@ -1,13 +1,25 @@
-# Default tags
+if [ ! "${TAGS_LOADED:-}" ]; then
+  # Default tags
 
-# The deleted tag is by default the first tag defined in the exclude settings.
-# If that does not exist, then it is "deleted".
-TAG_DEL=${TAG_DEL:-$($NOTMUCH config get search.exclude_tags|head -1)}
-TAG_DEL=${TAG_DEL:-deleted}
+  # The deleted tag is by default the first tag defined in the exclude settings.
+  # If that does not exist, then it is "deleted".
+  TAG_DEL=${TAG_DEL:-$($NOTMUCH config get search.exclude_tags|head -1)}
+  TAG_DEL=${TAG_DEL:-deleted}
 
-# Tag for messages in the inbox
-TAG_INBOX=${TAG_INBOX:-inbox}
+  # Tag for messages in the inbox
+  TAG_INBOX=${TAG_INBOX:-inbox}
 
-# White-space separates list of tags that are automatically added to new
-# emails. These tags will be removed when the message/tread is archived.
-TAGS_NEW=${TAGS_NEW:-$($NOTMUCH config get new.tags | xargs echo)}
+  # White-space separates list of tags that are automatically added to new
+  # emails. These tags will be removed when the message/tread is archived.
+  TAGS_NEW=${TAGS_NEW:-$($NOTMUCH config get new.tags | xargs echo)}
+
+  # Tag for messages that are unread
+  TAG_UNREAD=${TAG_UNREAD:-unread}
+  
+  # Tag for flagged messages
+  TAG_FLAGGED=${TAG_FLAGGED:-flagged}
+
+  export TAG_DEL TAG_INBOX TAGS_NEW TAG_UNREAD TAG_FLAGGED
+
+  export TAGS_LOADED=1
+  fi
diff --git a/src/sh/tools.sh b/src/sh/tools.sh
index f7da87b..24d6ed8 100644
--- a/src/sh/tools.sh
+++ b/src/sh/tools.sh
@@ -15,6 +15,22 @@ if [ ! "${TOOLS_LOADED:-}" ]; then
   fi
   export NOTMUCH
 
+  if command -v "msmtp" >/dev/null; then
+    MSMTP="msmtp"
+  else
+    err "Did not find the command-line email sender msmtp."
+    exit 1
+  fi
+  export MSMTP
+
+  if command -v "mbsync" >/dev/null; then
+    MBSYNC="mbsync"
+  else
+    err "Did not find the command-line IMAP synchronizer mbsync."
+    exit 1
+  fi
+  export MBSYNC
+
   if command -v "bat" >/dev/null; then
     CAT="bat"
   elif command -v "batcat" >/dev/null; then
@@ -22,9 +38,11 @@ if [ ! "${TOOLS_LOADED:-}" ]; then
   fi
   CATEMAIL=${CAT:+$CAT -l email --style=plain --color=always}
   CATMD=${CAT:+$CAT -l markdown --style=plain --color=always}
+  CATLOG=${CAT:+$CAT -l log --style=plain --color=always}
   CATEMAIL=${CATEMAIL:-cat}
-  CATEMD=${CATMD:-cat}
-  export CATEMAIL CATMD
+  CATMD=${CATMD:-cat}
+  CATLOG=${CATLOG:-cat}
+  export CATEMAIL CATMD CATLOG
 
   if command -v "pandoc" >/dev/null; then
     PANDOC="pandoc --from html --to markdown_strict-raw_html"
diff --git a/src/sh/varia.sh b/src/sh/varia.sh
index a4d188f..21eb19c 100644
--- a/src/sh/varia.sh
+++ b/src/sh/varia.sh
@@ -4,7 +4,6 @@
 # @argument $1: Question
 # @argument $2: Content to show in preview window
 # @return: 0 if the user answered "yes" and 1 otherwise.
-#!/bin/sh
 ynprompt() {
   return $(printf '0 \033[32myes\033[0m\n1 \033[31mno\033[0m\n' |
     $FZF \
@@ -17,8 +16,44 @@ ynprompt() {
     --preview-window='60%,border-line' \
     --margin='5%,5%,5%,15%' \
     --preview="echo \"$2\"" \
-    --with-nth=2 \
+    --with-nth=2.. \
     --accept-nth=1 \
     --header-border='line' \
     --color='border:yellow,header:yellow')
 }
+
+# This prompts the user for a series of options.
+# The options are read from stdin in the form "integer\toption\n".
+# Prints number
+#
+# @argument $1: Question
+# @argument $2: Content to show in preview window
+multiprompt() {
+  cat |
+    $FZF \
+    --reverse \
+    --no-input \
+    --header="$1" \
+    --preview-window='60%,border-line,wrap-word' \
+    --margin='5%,5%,5%,15%' \
+    --preview="echo \"$2\"" \
+    --with-nth=2.. \
+    --accept-nth=1 \
+    --header-border='line' \
+    --bind="ctrl-c,esc,ctrl-q:" \
+    --color='border:yellow,header:yellow' | head -1 || true
+}
+
+# ASCII-encode address
+# asciiaddress() {
+#   firstword=1
+#   for word in $*; do
+#     [ "${firstword:-}" ] || echo -n ' ' && firstword=
+#     case $word in
+#       *[![:cntrl:][:print:]]*) echo -n $word ;;
+#       *) return 0 ;;
+#     esac
+#     isascii "$word" && echo -n "$word" || echo -n "=?UTF-8?B?$(echo -n "$word" | base64)?="
+#   done
+# }
+