0006103: In SOGo web we can't display message content with Outlook conditional CSS - SOGo

ID	Project	Category	View Status	Date Submitted	Last Update

0006103	SOGo	Web Mail	public	2025-03-24 09:03	2025-03-24 09:03

Reporter	abdunazarov	Assigned To
Priority	high	Severity	major	Reproducibility	always
Status	new	Resolution	open
Platform	[Server] Linux	OS	RHEL/CentOS	OS Version	7
Product Version	5.11.2

Summary	0006103: In SOGo web we can't display message content with Outlook conditional CSS
Description	Hello friends! In Web mail we've found some bug. If user has some message with Outlook conditional CSS in message's content in his mailbox, exactly with condition like this: <!--[if !mso]><!--> https://domain.tld <!--<![endif]--> and we will try open this message SOGo filters out this content of the message from displayed content. But when we look in View message source, we can see that this content in this message's source. Can somebody explain, please. Is this a bug or some protection for security reason. In other clients, for example in Thunderbird conten like this displays normal.
Steps To Reproduce	Put this in your message and send to yourself <!--[if !mso]><!--> https://domain.tld <!--<![endif]--> Then try to open this message in SOGo Web
Tags	No tags attached.

Date Modified	Username	Field	Change
2025-03-24 09:03	abdunazarov	New Issue