Possible enumeration values:
| Name | Value | Description |
|---|---|---|
| Unknown |
0 |
|
| PEC |
1 |
|
|
2 |
||
|
3 |
||
| MailWithReceipt |
4 |
|
| Telegram |
5 |
|
| MailingService |
6 |
|
| CourierService |
7 |
|
| MessagingService |
8 |
|
| MessagingApp |
9 |
|
| Undefined |
10 |