diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3553804f..339c92e0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,9 +8,12 @@ All notable changes to this project will be documented in this file. The format
 
 ### Added
 
+- **Dovecot:**
+  - ENV `ENABLE_IMAP` ([#3703](https://github.com/docker-mailserver/docker-mailserver/pull/3703))
 - **Tests:**
   - You can now use `make run-local-instance` to run a DMS image that was built locally to test changes ([#3663](https://github.com/docker-mailserver/docker-mailserver/pull/3663))
-- Log a warning when update-check is enabled, but no stable release image is used ([#3684](https://github.com/docker-mailserver/docker-mailserver/pull/3684))
+- **Internal**:
+  - Log a warning when update-check is enabled, but no stable release image is used ([#3684](https://github.com/docker-mailserver/docker-mailserver/pull/3684))
 
 ### Updates
 
diff --git a/docs/content/config/environment.md b/docs/content/config/environment.md
index b8e257cc..5ef3b968 100644
--- a/docs/content/config/environment.md
+++ b/docs/content/config/environment.md
@@ -131,9 +131,14 @@ Enabled `policyd-spf` in Postfix's configuration. You will likely want to set th
 
 ##### ENABLE_POP3
 
-- **empty** => POP3 service disabled
+- **0** => POP3 service disabled
 - 1 => Enables POP3 service
 
+##### ENABLE_IMAP
+
+- 0 => Disabled
+- **1** => Enabled
+
 ##### ENABLE_CLAMAV
 
 - **0** => ClamAV is disabled
diff --git a/mailserver.env b/mailserver.env
index 68786224..48b537bc 100644
--- a/mailserver.env
+++ b/mailserver.env
@@ -119,10 +119,16 @@ ENABLE_OPENDMARC=1
 # - **1** => Enabled
 ENABLE_POLICYD_SPF=1
 
-# 1 => Enables POP3 service
-# empty => disables POP3
+# Enables POP3 service
+# - **0** => Disabled
+# - 1     => Enabled
 ENABLE_POP3=
 
+# Enables IMAP service
+# - 0     => Disabled
+# - **1** => Enabled
+ENABLE_IMAP=1
+
 # Enables ClamAV, and anti-virus scanner.
 #   1   => Enabled
 # **0** => Disabled
diff --git a/target/scripts/startup/setup.d/dovecot.sh b/target/scripts/startup/setup.d/dovecot.sh
index 3eeda286..e46aca21 100644
--- a/target/scripts/startup/setup.d/dovecot.sh
+++ b/target/scripts/startup/setup.d/dovecot.sh
@@ -6,12 +6,10 @@ function _setup_dovecot() {
   cp -a /usr/share/dovecot/protocols.d /etc/dovecot/
   # disable pop3 (it will be eventually enabled later in the script, if requested)
   mv /etc/dovecot/protocols.d/pop3d.protocol /etc/dovecot/protocols.d/pop3d.protocol.disab
+  # disable imap (it will be eventually enabled later in the script, if requested)
+  mv /etc/dovecot/protocols.d/imapd.protocol /etc/dovecot/protocols.d/imapd.protocol.disab
   mv /etc/dovecot/protocols.d/managesieved.protocol /etc/dovecot/protocols.d/managesieved.protocol.disab
-  sed -i -e 's|#ssl = yes|ssl = yes|g' /etc/dovecot/conf.d/10-master.conf
-  sed -i -e 's|#port = 993|port = 993|g' /etc/dovecot/conf.d/10-master.conf
-  sed -i -e 's|#port = 995|port = 995|g' /etc/dovecot/conf.d/10-master.conf
-  sed -i -e 's|#ssl = yes|ssl = required|g' /etc/dovecot/conf.d/10-ssl.conf
-  sed -i 's|^postmaster_address = .*$|postmaster_address = '"${POSTMASTER_ADDRESS}"'|g' /etc/dovecot/conf.d/15-lda.conf
+    sedfile -i 's|^postmaster_address = .*$|postmaster_address = '"${POSTMASTER_ADDRESS}"'|g' /etc/dovecot/conf.d/15-lda.conf
 
   if ! grep -q -E '^stats_writer_socket_path=' /etc/dovecot/dovecot.conf; then
     printf '\n%s\n' 'stats_writer_socket_path=' >>/etc/dovecot/dovecot.conf
@@ -37,9 +35,21 @@ function _setup_dovecot() {
 
   esac
 
+  if [[ ${ENABLE_POP3} -eq 1 || ${ENABLE_IMAP} -eq 1 ]]; then
+    sedfile -i -e 's|#ssl = yes|ssl = yes|g' /etc/dovecot/conf.d/10-master.conf
+    sedfile -i -e 's|#ssl = yes|ssl = required|g' /etc/dovecot/conf.d/10-ssl.conf
+  fi
+
   if [[ ${ENABLE_POP3} -eq 1 ]]; then
     _log 'debug' 'Enabling POP3 services'
     mv /etc/dovecot/protocols.d/pop3d.protocol.disab /etc/dovecot/protocols.d/pop3d.protocol
+    sedfile -i -e 's|#port = 995|port = 995|g' /etc/dovecot/conf.d/10-master.conf
+  fi
+
+  if [[ ${ENABLE_IMAP} -eq 1 ]]; then
+    _log 'debug' 'Enabling IMAP services'
+    mv /etc/dovecot/protocols.d/imapd.protocol.disab /etc/dovecot/protocols.d/imapd.protocol
+    sedfile -i -e 's|#port = 993|port = 993|g' /etc/dovecot/conf.d/10-master.conf
   fi
 
   [[ -f /tmp/docker-mailserver/dovecot.cf ]] && cp /tmp/docker-mailserver/dovecot.cf /etc/dovecot/local.conf
@@ -89,23 +99,23 @@ function _setup_dovecot_quota() {
     # disable dovecot quota in docevot confs
     if [[ -f /etc/dovecot/conf.d/90-quota.conf ]]; then
       mv /etc/dovecot/conf.d/90-quota.conf /etc/dovecot/conf.d/90-quota.conf.disab
-      sed -i \
+      sedfile -i \
         "s|mail_plugins = \$mail_plugins quota|mail_plugins = \$mail_plugins|g" \
         /etc/dovecot/conf.d/10-mail.conf
-      sed -i \
+      sedfile -i \
         "s|mail_plugins = \$mail_plugins imap_quota|mail_plugins = \$mail_plugins|g" \
         /etc/dovecot/conf.d/20-imap.conf
     fi
 
     # disable quota policy check in postfix
-    sed -i "s|check_policy_service inet:localhost:65265||g" /etc/postfix/main.cf
+    sedfile -i "s|check_policy_service inet:localhost:65265||g" /etc/postfix/main.cf
   else
     if [[ -f /etc/dovecot/conf.d/90-quota.conf.disab ]]; then
       mv /etc/dovecot/conf.d/90-quota.conf.disab /etc/dovecot/conf.d/90-quota.conf
-      sed -i \
+      sedfile -i \
         "s|mail_plugins = \$mail_plugins|mail_plugins = \$mail_plugins quota|g" \
         /etc/dovecot/conf.d/10-mail.conf
-      sed -i \
+      sedfile -i \
         "s|mail_plugins = \$mail_plugins|mail_plugins = \$mail_plugins imap_quota|g" \
         /etc/dovecot/conf.d/20-imap.conf
     fi
@@ -113,11 +123,11 @@ function _setup_dovecot_quota() {
     local MESSAGE_SIZE_LIMIT_MB=$((POSTFIX_MESSAGE_SIZE_LIMIT / 1000000))
     local MAILBOX_LIMIT_MB=$((POSTFIX_MAILBOX_SIZE_LIMIT / 1000000))
 
-    sed -i \
+    sedfile -i \
       "s|quota_max_mail_size =.*|quota_max_mail_size = ${MESSAGE_SIZE_LIMIT_MB}$([[ ${MESSAGE_SIZE_LIMIT_MB} -eq 0 ]] && echo "" || echo "M")|g" \
       /etc/dovecot/conf.d/90-quota.conf
 
-    sed -i \
+    sedfile -i \
       "s|quota_rule = \*:storage=.*|quota_rule = *:storage=${MAILBOX_LIMIT_MB}$([[ ${MAILBOX_LIMIT_MB} -eq 0 ]] && echo "" || echo "M")|g" \
       /etc/dovecot/conf.d/90-quota.conf
 
@@ -127,7 +137,7 @@ function _setup_dovecot_quota() {
     fi
 
     # enable quota policy check in postfix
-    sed -i -E \
+    sedfile -i -E \
       "s|(reject_unknown_recipient_domain)|\1, check_policy_service inet:localhost:65265|g" \
       /etc/postfix/main.cf
   fi
@@ -188,5 +198,5 @@ function _setup_dovecot_dhparam() {
 
 function _setup_dovecot_hostname() {
   _log 'debug' 'Applying hostname to Dovecot'
-  sed -i "s|^#hostname =.*$|hostname = '${HOSTNAME}'|g" /etc/dovecot/conf.d/15-lda.conf
+  sedfile -i "s|^#hostname =.*$|hostname = '${HOSTNAME}'|g" /etc/dovecot/conf.d/15-lda.conf
 }
diff --git a/target/scripts/startup/variables-stack.sh b/target/scripts/startup/variables-stack.sh
index 3b575f50..2660ce89 100644
--- a/target/scripts/startup/variables-stack.sh
+++ b/target/scripts/startup/variables-stack.sh
@@ -87,6 +87,7 @@ function __environment_variables_general_setup() {
   VARS[ENABLE_OPENDMARC]="${ENABLE_OPENDMARC:=1}"
   VARS[ENABLE_POLICYD_SPF]="${ENABLE_POLICYD_SPF:=1}"
   VARS[ENABLE_POP3]="${ENABLE_POP3:=0}"
+  VARS[ENABLE_IMAP]="${ENABLE_IMAP:=1}"
   VARS[ENABLE_POSTGREY]="${ENABLE_POSTGREY:=0}"
   VARS[ENABLE_QUOTAS]="${ENABLE_QUOTAS:=1}"
   VARS[ENABLE_RSPAMD]="${ENABLE_RSPAMD:=0}"