behaviour -> behavior

Streamline the usage of this word. The majority used behavior, so I
opted to go with this way of spelling it.

docs/content/config/advanced/auth-ldap.md

@@ -56,7 +56,7 @@ These variables specify the LDAP filters that dovecot uses to determine if a use
 This is split into the following two lookups, both using `%u` as the placeholder for the full login name ([see dovecot documentation for a full list of placeholders](https://doc.dovecot.org/configuration_manual/config_file/config_variables/)). Usually you only need to set `DOVECOT_USER_FILTER`, in which case it will be used for both filters.
 
 - `DOVECOT_USER_FILTER` is used to get the account details (uid, gid, home directory, quota, ...) of a user.
-- `DOVECOT_PASS_FILTER` is used to get the password information of the user, and is in pretty much all cases identical to `DOVECOT_USER_FILTER` (which is the default behaviour if left away).
+- `DOVECOT_PASS_FILTER` is used to get the password information of the user, and is in pretty much all cases identical to `DOVECOT_USER_FILTER` (which is the default behavior if left away).
 
 If your directory doesn't have the [postfix-book schema](https://github.com/variablenix/ldap-mail-schema/blob/master/postfix-book.schema) installed, then you must change the internal attribute handling for dovecot. For this you have to change the `pass_attr` and the `user_attr` mapping, as shown in the example below:
 

docs/content/config/advanced/ipv6.md

@@ -60,7 +60,7 @@ Enable `ip6tables` support so that Docker will manage IPv6 networking rules as w
     ```
 
     - `experimental: true` is currently required for `ip6tables: true` to work.
-    - `userland-proxy` setting [can potentially affect connection behaviour][gh-pull-3244-proxy] for local connections.
+    - `userland-proxy` setting [can potentially affect connection behavior][gh-pull-3244-proxy] for local connections.
 
     Now restart the daemon if it's running: `systemctl restart docker`.
 

docs/content/config/advanced/optional-config.md

@@ -35,7 +35,7 @@ This is a list of all configuration files and directories which are optional or
 - **whitelist_clients.local:** Whitelisted domains, not considered by postgrey. Enter one host or domain per line.
 - **spamassassin-rules.cf:** Anti-spam rules for Spamassassin. (Docs: [FAQ - SpamAssassin Rules][docs-faq-spamrules])
 - **fail2ban-fail2ban.cf:** Additional config options for `fail2ban.cf`. (Docs: [Fail2Ban][docs-fail2ban])
-- **fail2ban-jail.cf:** Additional config options for fail2ban's jail behaviour. (Docs: [Fail2Ban][docs-fail2ban])
+- **fail2ban-jail.cf:** Additional config options for fail2ban's jail behavior. (Docs: [Fail2Ban][docs-fail2ban])
 - **amavis.cf:** replaces the `/etc/amavis/conf.d/50-user` file
 - **dovecot.cf:** replaces `/etc/dovecot/local.conf`. (Docs: [Override Dovecot Defaults][docs-override-dovecot])
 - **dovecot-quotas.cf:** list of custom quotas per mailbox. (Docs: [Accounts][docs-accounts-quota])

docs/content/config/debugging.md

@@ -107,9 +107,9 @@ This could be from outdated software, or running a system that isn't able to pro
 
 - **macOS:** DMS has limited support for macOS. Often an issue encountered is due to permissions related to the `volumes` config in `compose.yaml`. You may have luck [trying `gRPC FUSE`][gh-macos-support] as the file sharing implementation; [`VirtioFS` is the successor][docker-macos-virtiofs] but presently appears incompatible with DMS.
 - **Kernel:** Some systems provide [kernels with modifications (_replacing defaults and backporting patches_)][network::kernels-modified] to support running legacy software or kernels, complicating compatibility. This can be commonly experienced with products like NAS.
-- **CGroups v2:** Hosts running older kernels (prior to 5.2) and systemd (prior to v244) are not likely to leverage cgroup v2, or have not defaulted to the cgroup v2 `unified` hierarchy. Not meeting this baseline may influence the behaviour of your DMS container, even with the latest Docker Engine installed.
+- **CGroups v2:** Hosts running older kernels (prior to 5.2) and systemd (prior to v244) are not likely to leverage cgroup v2, or have not defaulted to the cgroup v2 `unified` hierarchy. Not meeting this baseline may influence the behavior of your DMS container, even with the latest Docker Engine installed.
 - **Container runtime:** Docker and Podman for example have subtle differences. DMS docs are primarily focused on Docker, but we try to document known issues where relevant.
-- **Rootless containers:** Introduces additional differences in behaviour or requirements:
+- **Rootless containers:** Introduces additional differences in behavior or requirements:
     - cgroup v2 is required for supporting rootless containers.
     - Differences such as for container networking which may further affect support for IPv6 and preserving the client IP (Remote address). Example with Docker rootless are [binding a port to a specific interface][docker-rootless-interface] and the choice of [port forwarding driver][docs-rootless-portdriver].
 

docs/content/config/environment.md

@@ -543,7 +543,7 @@ Changes the interval in which log files are rotated.
 
     The Amavis action configured by this setting:
 
-    - Influences the behaviour of the [`SA_KILL`](#sa_kill) setting.
+    - Influences the behavior of the [`SA_KILL`](#sa_kill) setting.
     - Applies to the Amavis config parameters `$final_spam_destiny` and `$final_bad_header_destiny`.
 
 !!! note "This ENV setting is related to"
@@ -579,7 +579,7 @@ Mail is not yet considered spam at this spam score, but for purposes like diagno
     ```
 
     !!! info "The `X-Spam-Score` is `4.162`"
-    
+
         High enough for `SA_TAG` to trigger adding these headers, but not high enough for `SA_TAG2` (_which would set `X-Spam-Flag: YES` instead_).
 
 ##### SA_TAG2

docs/content/examples/use-cases/imap-folders.md

@@ -61,7 +61,7 @@ Take care to test localized names work well as well.
 
     This information is provided by the community.
 
-    It presently lacks references to confirm the behaviour. If any information is incorrect please let us know! :smile:
+    It presently lacks references to confirm the behavior. If any information is incorrect please let us know! :smile:
 
 
 [docs-config-overrides-dovecot]: ../../config/advanced/override-defaults/dovecot.md#override-configuration