Fixed misstyped condition

setup/flavors/compose/mailu.env

@@ -74,7 +74,7 @@ MESSAGE_SIZE_LIMIT={{ message_size_limit or '50000000' }}
 
 # Networks granted relay permissions, make sure that you include your Docker
 # internal network (default to 172.17.0.0/16)
-RELAYNETS={{ relaynets or '172.17.0.0/16'}}
+RELAYNETS={{ relaynets or '172.17.0.0/16' }}
 
 # Will relay all outgoing mails if configured
 RELAYHOST={{ relayhost }}
@@ -94,7 +94,7 @@ DMARC_RUF={{ dmarc_ruf or 'admin' }}
 # emails to all users.
 WELCOME={{ welcome_enable or 'false' }}
 WELCOME_SUBJECT={{ welcome_subject or 'Welcome to your new email account' }}
-WELCOME_BODY={{ welcome_body 'Welcome to your new email account, if you can read this, then it is configured properly!' }}
+WELCOME_BODY={{ welcome_body or 'Welcome to your new email account, if you can read this, then it is configured properly!' }}
 {% endif %}
 
 # Maildir Compression