limitation for the tag subject - Subject line text filed

Products

• Email Security.cloud

Issue/Introduction

1. How many characters can be added as a tagged subject? 
2. Are there unsupported special characters we cannot enter in the tagged subject? 

Environment

Email Security.cloud

Resolution

1. The character limit of tag subject on different services varies on ClientNet.

• Antispam: 50
• Image Control: 50
• IOC Blocklist: 50
• Data Protection: 150
• Email Impersonation: 50
• Scan-time Protection Policy: 50

2. There is no unsupported special characters. All special characters are allowed in the tag subject line field.