diff --git a/mod_php_install.sh b/mod_php_install.sh
index 2a89eff..15ac821 100755
--- a/mod_php_install.sh
+++ b/mod_php_install.sh
@@ -6949,33 +6949,46 @@ echononl "\tInstall 'imap' via pecl.."
 
 if ([[ "$PHP_MAJOR_VERSION" -eq 8 ]] && [[ "$PHP_MINOR_VERSION" -ge 4 ]]) \
     || [[ "$PHP_MAJOR_VERSION" -gt 8 ]] \
-    || [[ "$os_dist" = "debian" ]] && [[ "$os_version" -ge 13 ]] ; then
-   printf "\n" | ${PREFIX_PHP}/bin/pecl install imap >> "${_logdir}/pecl_install.log" 2>&1
-   if [ "$?" = "0" ]; then
-      echo_ok
+    || ([[ "$os_dist" = "debian" ]] && [[ "$os_version" -ge 13 ]]) ; then
 
-      echononl "\tphp.ini: extension=imap .."
-      _extension="imap.so"
-      perl -i -n -p -e "s#^(\s*\[PHP\]\s*)#\1\nextension=${_extension}\n#" $PHP_INI_FILE
+   if ( dpkg -s libc-client-dev > /dev/null 2>&1 \
+        || dpkg -s libc-client2007e-dev > /dev/null 2>&1 \
+        || dpkg -s uw-imap-dev >/dev/null 2>&1; ) \
+      || [[ -f /usr/local/imap/lib/libc-client.a ]] ; then
+
+      printf "\n" | ${PREFIX_PHP}/bin/pecl install imap >> "${_logdir}/pecl_install.log" 2>&1
       if [ "$?" = "0" ]; then
          echo_ok
+
+         echononl "\tphp.ini: extension=imap .."
+         _extension="imap.so"
+         perl -i -n -p -e "s#^(\s*\[PHP\]\s*)#\1\nextension=${_extension}\n#" $PHP_INI_FILE
+         if [ "$?" = "0" ]; then
+            echo_ok
+         else
+            echo_failed
+         fi
+
       else
          echo_failed
+
+         echo ""
+         echononl "continue anyway [yes/no]: "
+         read OK
+         OK="$(echo "$OK" | tr '[:upper:]' '[:lower:]')"
+         while [[ "$OK" != "yes" ]] && [[  "$OK" != "no" ]] ; do
+            echononl "Wrong entry! - repeat [yes/nno]: "
+            read OK
+         done
+         [[ $OK = "yes" ]] || fatal "Abbruch durch User"
+         echo ""
       fi
 
    else
-      echo_failed
 
-      echo ""
-      echononl "continue anyway [yes/no]: "
-      read OK
-      OK="$(echo "$OK" | tr '[:upper:]' '[:lower:]')"
-      while [[ "$OK" != "yes" ]] && [[  "$OK" != "no" ]] ; do
-         echononl "Wrong entry! - repeat [yes/nno]: "
-         read OK
-      done
-      [[ $OK = "yes" ]] || fatal "Abbruch durch User"
-      echo ""
+      echo_skipped
+      warn "The imap plugin cannot be installed - no imap library was found.  "
+
    fi
    
 else