Cannot use hyphens in useHeader for SyncJob

[austonpramodh]

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Description

Cannot use hyphens in useHeader for SyncJob

Logs:

php-fpm-mailcow-1  | 172.22.1.14 -  19/Dec/2024:01:55:51 -0600 "GET /json_api.php" 200
php-fpm-mailcow-1  | fd4d:6169:6c63:6f77::13 -  19/Dec/2024:01:55:56 -0600 "HEAD /forwardinghosts.php" 200
php-fpm-mailcow-1  | 172.22.1.14 -  19/Dec/2024:01:55:56 -0600 "GET /forwardinghosts.php" 200
php-fpm-mailcow-1  | fd4d:6169:6c63:6f77::13 -  19/Dec/2024:01:55:57 -0600 "POST /json_api.php" 200
php-fpm-mailcow-1  | 172.22.1.14 -  19/Dec/2024:01:55:57 -0600 "GET /edit.php" 200
php-fpm-mailcow-1  | fd4d:6169:6c63:6f77::13 -  19/Dec/2024:01:55:58 -0600 "GET /json_api.php" 200
php-fpm-mailcow-1  | 172.22.1.14 -  19/Dec/2024:01:56:03 -0600 "POST /json_api.php" 200
php-fpm-mailcow-1  | fd4d:6169:6c63:6f77::13 -  19/Dec/2024:01:56:04 -0600 "GET /edit.php" 200
php-fpm-mailcow-1  | 172.22.1.14 -  19/Dec/2024:01:56:04 -0600 "GET /json_api.php" 200
php-fpm-mailcow-1  | fd4d:6169:6c63:6f77::13 -  19/Dec/2024:01:56:16 -0600 "HEAD /settings.php" 304

Steps to reproduce:

1. Create a Sync Job
2. add in `Custom parameters` -> `--useheader='X-Gmail-Received'`

Which branch are you using?

master

Which architecture are you using?

x86

Operating System:

Ubuntu 22.04 LTS

Server/VM specifications:

16GB, 4 cores

Is Apparmor, SELinux or similar active?

yes

Virtualization technology:

N/A

Docker version:

27.4

docker-compose version or docker compose version:

v2.31.0

mailcow version:

2024-11b

Reverse proxy:

Caddy

Logs of git diff:

diff --git a/data/web/inc/vars.inc.php b/data/web/inc/vars.inc.php
index d3165b8af..ef72831b6 100644
--- a/data/web/inc/vars.inc.php
+++ b/data/web/inc/vars.inc.php
@@ -366,7 +366,10 @@ $IMAPSYNC_OPTIONS = array(
     'truncmess',  
     'usecache', 
     'useheader',  
-    'useuid'    
+    'useuid',
+    // Additional Custom Vars
+    'maxbytespersecond',
+    
   ),
   'blacklist' => array(
     'skipmess',

### Logs of iptables -L -vn:

```plain text
N/A

Logs of ip6tables -L -vn:

N/A

Logs of iptables -L -vn -t nat:

N/A

Logs of ip6tables -L -vn -t nat:

N/A

DNS check:

N/A