en-tete X
| UA
| Compatible
| en-tête X | |
| comp., MS | X-header |
| UE | |
| polit. | EU |
| UES | |
| gen. | European Union Switzerland; EUS |
| compatible | |
| chem. engl. | miscible; mixable |
| comp. | consistent |
| |||
| X-header (" An e-mail message header that begins with "X-".") | |||
|
en-tete X : 3 phrases in 1 subject |
| Microsoft | 3 |