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Are you seeing in your server logs or a specific email header ? Gmail assigning Message-IDs with two different domains

: Systems use these IDs to group messages together in your inbox. If the ID changes or is formatted incorrectly, it can sometimes cause threads to break, leading to fragmented conversations. Technical Implications for Admins hxcore.ol

: You are likely receiving a transactional email (like a password reset or shipping notification) or a marketing newsletter sent via a platform like Netcore Cloud . Are you seeing in your server logs or