Attach file in SAPconnect with wrong type ALI

Dear Expert,

I found some issue with attach file spool with SAPconnect. We would like to send mail with attach file spool.

But when we send then we check from our outlook. It show us with xxx.ALI. When we check from other system.

We can get with xxx.HTM. We would like to get for attach file HTM format.

Can you analzye for our issue ?

Thanks & regards,

Somkeit