diff --git a/acme.sh b/acme.sh
index 81a20b0..4d4957f 100755
--- a/acme.sh
+++ b/acme.sh
@@ -268,31 +268,31 @@ _usage() {
 __debug_bash_helper() {
   # At this point only do for --debug 3
   if [ "${DEBUG:-$DEBUG_LEVEL_NONE}" -lt "$DEBUG_LEVEL_3" ]; then
-    echo ""
     return
   fi
   # Return extra debug info when running with bash, otherwise return empty
   # string.
   if [ -z "${BASH_VERSION}" ]; then
-    echo ""
     return
   fi
   # We are a bash shell at this point, return the filename, function name, and
   # line number as a string
   _dbh_saveIFS=$IFS
   IFS=" "
-  # Must use eval or syntax error happens under dash
+  # Must use eval or syntax error happens under dash. The eval should use
+  # single quotes as older versions of busybox had a bug with double quotes and
+  # eval.
   # Use 'caller 1' as we want one level up the stack as we should be called
   # by one of the _debug* functions
-  eval "_dbh_called=($(caller 1))"
+  eval '_dbh_called=($(caller 1))'
   IFS=$_dbh_saveIFS
-  _dbh_file=${_dbh_called[2]}
+  eval '_dbh_file=${_dbh_called[2]}'
   if [ -n "${_script_home}" ]; then
     # Trim off the _script_home directory name
-    _dbh_file=${_dbh_file#$_script_home/}
+    eval '_dbh_file=${_dbh_file#$_script_home/}'
   fi
-  _dbh_function=${_dbh_called[1]}
-  _dbh_lineno=${_dbh_called[0]}
+  eval '_dbh_function=${_dbh_called[1]}'
+  eval '_dbh_lineno=${_dbh_called[0]}'
   printf "%-40s " "$_dbh_file:${_dbh_function}:${_dbh_lineno}"
 }
 
@@ -3365,7 +3365,7 @@ _on_issue_success() {
     fi
   fi
 
-  if _hasfield "$Le_Webroot" "$W_DNS"; then
+  if _hasfield "$Le_Webroot" "$W_DNS" && [ -z "$FORCE_DNS_MANUAL" ]; then
     _err "$_DNS_MANUAL_WARN"
   fi
 
diff --git a/dnsapi/dns_nic.sh b/dnsapi/dns_nic.sh
index 493b05b..e3b39b0 100644
--- a/dnsapi/dns_nic.sh
+++ b/dnsapi/dns_nic.sh
@@ -89,7 +89,7 @@ dns_nic_rm() {
     return 1
   fi
 
-  _domain_id=$(printf "%s" "$response" | grep "$_sub_domain" | grep "$txtvalue" | sed -r "s/.*<rr id=\"(.*)\".*/\1/g")
+  _domain_id=$(printf "%s" "$response" | grep "$_sub_domain" | grep -- "$txtvalue" | sed -r "s/.*<rr id=\"(.*)\".*/\1/g")
 
   if ! _nic_rest DELETE "services/$_service/zones/$_domain/records/$_domain_id"; then
     _err "Delete record error"
diff --git a/dnsapi/dns_pleskxml.sh b/dnsapi/dns_pleskxml.sh
new file mode 100644
index 0000000..c5d9e54
--- /dev/null
+++ b/dnsapi/dns_pleskxml.sh
@@ -0,0 +1,414 @@
+#!/usr/bin/env sh
+
+##  Name: dns_pleskxml.sh
+##  Created by Stilez.
+##  Also uses some code from PR#1832 by @romanlum (https://github.com/Neilpang/acme.sh/pull/1832/files)
+
+##  This DNS-01 method uses the Plesk XML API described at:
+##  https://docs.plesk.com/en-US/12.5/api-rpc/about-xml-api.28709
+##  and more specifically: https://docs.plesk.com/en-US/12.5/api-rpc/reference.28784
+
+##  Note: a DNS ID with host = empty string is OK for this API, see
+##  https://docs.plesk.com/en-US/obsidian/api-rpc/about-xml-api/reference/managing-dns/managing-dns-records/adding-dns-record.34798
+##  For example, to add a TXT record to DNS alias domain "acme-alias.com" would be a valid Plesk action.
+##  So this API module can handle such a request, if needed.
+
+##  For ACME v2 purposes, new TXT records are appended when added, and removing one TXT record will not affect any other TXT records.
+
+##  The user credentials (username+password) and URL/URI for the Plesk XML API must be set by the user
+##  before this module is called (case sensitive):
+##
+##  ```
+##  export pleskxml_uri="https://address-of-my-plesk-server.net:8443/enterprise/control/agent.php"
+##          (or probably something similar)
+##  export pleskxml_user="my plesk username"
+##  export pleskxml_pass="my plesk password"
+##  ```
+
+##  Ok, let's issue a cert now:
+##  ```
+##  acme.sh --issue --dns dns_pleskxml -d example.com -d www.example.com
+##  ```
+##
+##  The `pleskxml_uri`, `pleskxml_user` and `pleskxml_pass` will be saved in `~/.acme.sh/account.conf` and reused when needed.
+
+####################  INTERNAL VARIABLES + NEWLINE + API TEMPLATES ##################################
+
+pleskxml_init_checks_done=0
+
+# Variable containing bare newline - not a style issue
+# shellcheck disable=SC1004
+NEWLINE='\
+'
+
+pleskxml_tplt_get_domains="<packet><customer><get-domain-list><filter/></get-domain-list></customer></packet>"
+# Get a list of domains that PLESK can manage, so we can check root domain + host for acme.sh
+# Also used to test credentials and URI.
+# No params.
+
+pleskxml_tplt_get_dns_records="<packet><dns><get_rec><filter><site-id>%s</site-id></filter></get_rec></dns></packet>"
+# Get all DNS records for a Plesk domain ID.
+# PARAM = Plesk domain id to query
+
+pleskxml_tplt_add_txt_record="<packet><dns><add_rec><site-id>%s</site-id><type>TXT</type><host>%s</host><value>%s</value></add_rec></dns></packet>"
+# Add a TXT record to a domain.
+# PARAMS = (1) Plesk internal domain ID, (2) "hostname" for the new record, eg '_acme_challenge', (3) TXT record value
+
+pleskxml_tplt_rmv_dns_record="<packet><dns><del_rec><filter><id>%s</id></filter></del_rec></dns></packet>"
+# Delete a specific TXT record from a domain.
+# PARAM = the Plesk internal ID for the DNS record to be deleted
+
+####################  Public functions ##################################
+
+#Usage: dns_pleskxml_add   _acme-challenge.www.domain.com   "XKrxpRBosdIKFzxW_CT3KLZNf6q0HG9i01zxXp5CPBs"
+dns_pleskxml_add() {
+  fulldomain=$1
+  txtvalue=$2
+
+  _info "Entering dns_pleskxml_add() to add TXT record '$txtvalue' to domain '$fulldomain'..."
+
+  # Get credentials if not already checked, and confirm we can log in to Plesk XML API
+  if ! _credential_check; then
+    return 1
+  fi
+
+  # Get root and subdomain details, and Plesk domain ID
+  if ! _pleskxml_get_root_domain "$fulldomain"; then
+    return 1
+  fi
+
+  _debug 'Credentials OK, and domain identified. Calling Plesk XML API to add TXT record'
+
+  # printf using template in a variable - not a style issue
+  # shellcheck disable=SC2059
+  request="$(printf "$pleskxml_tplt_add_txt_record" "$root_domain_id" "$sub_domain_name" "$txtvalue")"
+  if ! _call_api "$request"; then
+    return 1
+  fi
+
+  # OK, we should have added a TXT record. Let's check and return success if so.
+  # All that should be left in the result, is one section, containing <result><status>ok</status><id>NEW_DNS_RECORD_ID</id></result>
+
+  results="$(_api_response_split "$pleskxml_prettyprint_result" 'result' '<status>')"
+
+  if ! _value "$results" | grep '<status>ok</status>' | grep '<id>[0-9]\{1,\}</id>' >/dev/null; then
+    # Error - doesn't contain expected string. Something's wrong.
+    _err 'Error when calling Plesk XML API.'
+    _err 'The result did not contain the expected <id>XXXXX</id> section, or contained other values as well.'
+    _err 'This is unexpected: something has gone wrong.'
+    _err 'The full response was:'
+    _err "$pleskxml_prettyprint_result"
+    return 1
+  fi
+
+  recid="$(_value "$results" | grep '<id>[0-9]\{1,\}</id>' | sed 's/^.*<id>\([0-9]\{1,\}\)<\/id>.*$/\1/')"
+
+  _info "Success. TXT record appears to be correctly added (Plesk record ID=$recid). Exiting dns_pleskxml_add()."
+
+  return 0
+}
+
+#Usage: dns_pleskxml_rm   _acme-challenge.www.domain.com   "XKrxpRBosdIKFzxW_CT3KLZNf6q0HG9i01zxXp5CPBs"
+dns_pleskxml_rm() {
+  fulldomain=$1
+  txtvalue=$2
+
+  _info "Entering dns_pleskxml_rm() to remove TXT record '$txtvalue' from domain '$fulldomain'..."
+
+  # Get credentials if not already checked, and confirm we can log in to Plesk XML API
+  if ! _credential_check; then
+    return 1
+  fi
+
+  # Get root and subdomain details, and Plesk domain ID
+  if ! _pleskxml_get_root_domain "$fulldomain"; then
+    return 1
+  fi
+
+  _debug 'Credentials OK, and domain identified. Calling Plesk XML API to get list of TXT records and their IDs'
+
+  # printf using template in a variable - not a style issue
+  # shellcheck disable=SC2059
+  request="$(printf "$pleskxml_tplt_get_dns_records" "$root_domain_id")"
+  if ! _call_api "$request"; then
+    return 1
+  fi
+
+  # Reduce output to one line per DNS record, filtered for TXT records with a record ID only (which they should all have)
+  # Also strip out spaces between tags, redundant <data> and </data> group tags and any <self-closing/> tags
+  reclist="$(_api_response_split "$pleskxml_prettyprint_result" 'result' '<status>ok</status>' \
+    | sed 's# \{1,\}<\([a-zA-Z]\)#<\1#g;s#</\{0,1\}data>##g;s#<[a-z][^/<>]*/>##g' \
+    | grep "<site-id>${root_domain_id}</site-id>" \
+    | grep '<id>[0-9]\{1,\}</id>' \
+    | grep '<type>TXT</type>'
+  )"
+
+  if [ -z "$reclist" ]; then
+    _err "No TXT records found for root domain ${root_domain_name} (Plesk domain ID ${root_domain_id}). Exiting."
+    return 1
+  fi
+
+  _debug "Got list of DNS TXT records for root domain '$root_domain_name':"
+  _debug "$reclist"
+
+  recid="$(_value "$reclist" \
+    | grep "<host>${fulldomain}.</host>" \
+    | grep "<value>${txtvalue}</value>" \
+    | sed 's/^.*<id>\([0-9]\{1,\}\)<\/id>.*$/\1/'
+  )"
+
+  if ! _value "$recid" | grep '^[0-9]\{1,\}$' >/dev/null; then
+    _err "DNS records for root domain '${root_domain_name}' (Plesk ID ${root_domain_id}) + host '${sub_domain_name}' do not contain the TXT record '${txtvalue}'"
+    _err "Cannot delete TXT record. Exiting."
+    return 1
+  fi
+
+  _debug "Found Plesk record ID for target text string '${txtvalue}': ID=${recid}"
+  _debug 'Calling Plesk XML API to remove TXT record'
+
+  # printf using template in a variable - not a style issue
+  # shellcheck disable=SC2059
+  request="$(printf "$pleskxml_tplt_rmv_dns_record" "$recid")"
+  if ! _call_api "$request"; then
+    return 1
+  fi
+
+  # OK, we should have removed a TXT record. Let's check and return success if so.
+  # All that should be left in the result, is one section, containing <result><status>ok</status><id>PLESK_DELETED_DNS_RECORD_ID</id></result>
+
+  results="$(_api_response_split "$pleskxml_prettyprint_result" 'result' '<status>')"
+
+  if ! _value "$results" | grep '<status>ok</status>' | grep '<id>[0-9]\{1,\}</id>' >/dev/null; then
+    # Error - doesn't contain expected string. Something's wrong.
+    _err 'Error when calling Plesk XML API.'
+    _err 'The result did not contain the expected <id>XXXXX</id> section, or contained other values as well.'
+    _err 'This is unexpected: something has gone wrong.'
+    _err 'The full response was:'
+    _err "$pleskxml_prettyprint_result"
+    return 1
+  fi
+
+  _info "Success. TXT record appears to be correctly removed. Exiting dns_pleskxml_rm()."
+  return 0
+}
+
+####################  Private functions below (utility functions) ##################################
+
+# Outputs value of a variable without additional newlines etc
+_value() {
+  printf '%s' "$1"
+}
+
+# Outputs value of a variable (FQDN) and cuts it at 2 specified '.' delimiters, returning the text in between
+# $1, $2 = where to cut
+# $3 = FQDN
+_valuecut() {
+  printf '%s' "$3" | cut -d . -f "${1}-${2}"
+}
+
+# Counts '.' present in a domain name or other string
+# $1 = domain name
+_countdots() {
+  _value "$1" | tr -dc '.' | wc -c | sed 's/ //g'
+}
+
+# Cleans up an API response, splits it "one line per item in the response" and greps for a string that in the context, identifies "useful" lines
+# $1 - result string from API
+# $2 - plain text tag to resplit on (usually "result" or "domain"). NOT REGEX
+# $3 - basic regex to recognise useful return lines
+# note: $3 matches via basic NOT extended regex (BRE), as extended regex capabilities not needed at the moment.
+#       Last line could change to <sed -n '/.../p'> instead, with suitable escaping of ['"/$],
+#       if future Plesk XML API changes ever require extended regex
+_api_response_split() {
+  printf '%s' "$1" \
+    | sed 's/^ +//;s/ +$//' \
+    | tr -d '\n\r' \
+    | sed "s/<\/\{0,1\}$2>/${NEWLINE}/g" \
+    | grep "$3"
+}
+
+####################  Private functions below (DNS functions) ##################################
+
+# Calls Plesk XML API, and checks results for obvious issues
+_call_api() {
+  request="$1"
+  errtext=''
+
+  _debug 'Entered _call_api(). Calling Plesk XML API with request:'
+  _debug "'$request'"
+
+  export _H1="HTTP_AUTH_LOGIN: $pleskxml_user"
+  export _H2="HTTP_AUTH_PASSWD: $pleskxml_pass"
+  export _H3="content-Type: text/xml"
+  export _H4="HTTP_PRETTY_PRINT: true"
+  pleskxml_prettyprint_result="$(_post "${request}" "$pleskxml_uri" "" "POST")"
+  pleskxml_retcode="$?"
+  _debug 'The responses from the Plesk XML server were:'
+  _debug "retcode=$pleskxml_retcode. Literal response:"
+  _debug "'$pleskxml_prettyprint_result'"
+
+  # Detect any <status> that isn't "ok". None of the used calls should fail if the API is working correctly.
+  # Also detect if there simply aren't any status lines (null result?) and report that, as well.
+
+  statuslines_count_total="$(echo "$pleskxml_prettyprint_result" | grep -c '^ *<status>[^<]*</status> *$')"
+  statuslines_count_okay="$(echo "$pleskxml_prettyprint_result" | grep -c '^ *<status>ok</status> *$')"
+
+  if [ -z "$statuslines_count_total" ]; then
+
+    # We have no status lines at all. Results are empty
+    errtext='The Plesk XML API unexpectedly returned an empty set of results for this call.'
+
+  elif [ "$statuslines_count_okay" -ne "$statuslines_count_total" ]; then
+
+    # We have some status lines that aren't "ok". Any available details are in API response fields "status" "errcode" and "errtext"
+    # Workaround for basic regex: 
+    #   - filter output to keep only lines like this: "SPACES<TAG>text</TAG>SPACES" (shouldn't be necessary with prettyprint but guarantees subsequent code is ok)
+    #   - then edit the 3 "useful" error tokens individually and remove closing tags on all lines
+    #   - then filter again to remove all lines not edited (which will be the lines not starting A-Z)
+    errtext="$(_value "$pleskxml_prettyprint_result" \
+      | grep '^ *<[a-z]\{1,\}>[^<]*<\/[a-z]\{1,\}> *$' \
+      | sed 's/^ *<status>/Status:     /;s/^ *<errcode>/Error code: /;s/^ *<errtext>/Error text: /;s/<\/.*$//' \
+      | grep '^[A-Z]'
+    )"
+
+  fi
+
+  if [ "$pleskxml_retcode" -ne 0 ] || [ "$errtext" != "" ]; then
+    # Call failed, for reasons either in the retcode or the response text...
+
+    if [ "$pleskxml_retcode" -eq 0 ]; then
+      _err "The POST request was successfully sent to the Plesk server."
+    else
+      _err "The return code for the POST request was $pleskxml_retcode (non-zero = failure in submitting request to server)."
+    fi
+
+    if [ "$errtext" != "" ]; then
+      _err 'The error responses received from the Plesk server were:'
+      _err "$errtext"
+    else
+      _err "No additional error messages were received back from the Plesk server"
+    fi
+
+    _err "The Plesk XML API call failed."
+    return 1
+
+  fi
+
+  _debug "Leaving _call_api(). Successful call."
+
+  return 0
+}
+
+# Startup checks (credentials, URI)
+_credential_check() {
+  _debug "Checking Plesk XML API login credentials and URI..."
+
+  if [ "$pleskxml_init_checks_done" -eq 1 ]; then
+    _debug "Initial checks already done, no need to repeat. Skipped."
+    return 0
+  fi
+
+  pleskxml_user="${pleskxml_user:-$(_readaccountconf_mutable pleskxml_user)}"
+  pleskxml_pass="${pleskxml_pass:-$(_readaccountconf_mutable pleskxml_pass)}"
+  pleskxml_uri="${pleskxml_uri:-$(_readaccountconf_mutable pleskxml_uri)}"
+
+  if [ -z "$pleskxml_user" ] || [ -z "$pleskxml_pass" ] || [ -z "$pleskxml_uri" ]; then
+    pleskxml_user=""
+    pleskxml_pass=""
+    pleskxml_uri=""
+    _err "You didn't specify one or more of the Plesk XML API username, password, or URI."
+    _err "Please create these and try again."
+    _err "Instructions are in the 'dns_pleskxml' plugin source code or in the acme.sh documentation."
+    return 1
+  fi
+
+  # Test the API is usable, by trying to read the list of managed domains...
+  _call_api "$pleskxml_tplt_get_domains"
+  if [ "$pleskxml_retcode" -ne 0 ]; then
+    _err 'Failed to access Plesk XML API.'
+    _err "Please check your login credentials and Plesk URI, and that the URI is reachable, and try again."
+    return 1
+  fi
+
+  _saveaccountconf_mutable pleskxml_uri "$pleskxml_uri"
+  _saveaccountconf_mutable pleskxml_user "$pleskxml_user"
+  _saveaccountconf_mutable pleskxml_pass "$pleskxml_pass"
+
+  _debug "Test login to Plesk XML API successful. Login credentials and URI successfully saved to the acme.sh configuration file for future use."
+
+  pleskxml_init_checks_done=1
+
+  return 0
+}
+
+# For a FQDN, identify the root domain managed by Plesk, its domain ID in Plesk, and the host if any.
+
+# IMPORTANT NOTE:  a result with host = empty string is OK for this API, see
+# https://docs.plesk.com/en-US/obsidian/api-rpc/about-xml-api/reference/managing-dns/managing-dns-records/adding-dns-record.34798
+# See notes at top of this file
+
+_pleskxml_get_root_domain() {
+  original_full_domain_name="$1"
+
+  _debug "Identifying DNS root domain for '$original_full_domain_name' that is managed by the Plesk account."
+
+  # test if the domain as provided is valid for splitting.
+
+  if [ "$(_countdots "$original_full_domain_name")" -eq 0 ]; then
+    _err "Invalid domain. The ACME domain must contain at least two parts (aa.bb) to identify a domain and tld for the TXT record."
+    return 1
+  fi
+
+  _debug "Querying Plesk server for list of managed domains..."
+
+  _call_api "$pleskxml_tplt_get_domains"
+  if [ "$pleskxml_retcode" -ne 0 ]; then
+    return 1
+  fi
+
+  # Generate a crude list of domains known to this Plesk account.
+  # We convert <ascii-name> tags to <name> so it'll flag on a hit with either <name> or <ascii-name> fields,
+  # for non-Western character sets.
+  # Output will be one line per known domain, containing 2 <name> tages and a single <id> tag
+  # We don't actually need to check for type, name, *and* id, but it guarantees only usable lines are returned.
+
+  output="$(_api_response_split "$pleskxml_prettyprint_result" 'domain' '<type>domain</type>' | sed 's/<ascii-name>/<name>/g;s/<\/ascii-name>/<\/name>/g' | grep '<name>' | grep '<id>')"
+
+  _debug 'Domains managed by Plesk server are (ignore the hacked output):'
+  _debug "$output"
+
+  # loop and test if domain, or any parent domain, is managed by Plesk
+  # Loop until we don't have any '.' in the string we're testing as a candidate Plesk-managed domain
+
+  root_domain_name="$original_full_domain_name"
+
+  while true; do
+
+    _debug "Checking if '$root_domain_name' is managed by the Plesk server..."
+
+    root_domain_id="$(_value "$output" | grep "<name>$root_domain_name</name>" | _head_n 1 | sed 's/^.*<id>\([0-9]\{1,\}\)<\/id>.*$/\1/')"
+
+    if [ -n "$root_domain_id" ]; then
+      # Found a match
+      # SEE IMPORTANT NOTE ABOVE - THIS FUNCTION CAN RETURN HOST='', AND THAT'S OK FOR PLESK XML API WHICH ALLOWS IT.
+      # SO WE HANDLE IT AND DON'T PREVENT IT
+      sub_domain_name="$(_value "$original_full_domain_name" | sed "s/\.\{0,1\}${root_domain_name}"'$//')"
+      _info "Success. Matched host '$original_full_domain_name' to: DOMAIN '${root_domain_name}' (Plesk ID '${root_domain_id}'), HOST '${sub_domain_name}'. Returning."
+      return 0
+    fi
+
+    # No match, try next parent up (if any)...
+
+    root_domain_name="$(_valuecut 2 1000 "$root_domain_name")"
+
+    if [ "$(_countdots "$root_domain_name")" -eq 0 ]; then
+      _debug "No match, and next parent would be a TLD..."
+      _err "Cannot find '$original_full_domain_name' or any parent domain of it, in Plesk."
+      _err "Are you sure that this domain is managed by this Plesk server?"
+      return 1
+    fi
+
+    _debug "No match, trying next parent up..."
+
+  done
+}
diff --git a/notify/mailgun.sh b/notify/mailgun.sh
index 4b6ee3b..93cdf79 100644
--- a/notify/mailgun.sh
+++ b/notify/mailgun.sh
@@ -7,7 +7,7 @@
 
 #MAILGUN_REGION="us|eu"          #optional, use "us" as default
 #MAILGUN_API_DOMAIN="xxxxxx.com"  #optional, use the default sandbox domain
-#MAILGUN_FROM="xxx@xxxxx.com"    #optional, use the default sendbox account
+#MAILGUN_FROM="xxx@xxxxx.com"    #optional, use the default sandbox account
 
 _MAILGUN_BASE_US="https://api.mailgun.net/v3"
 _MAILGUN_BASE_EU="https://api.eu.mailgun.net/v3"