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Nederlands| Protocol | Security Setting | Port Number(s) |
|---|---|---|
| SMTP (sending mail) | Encrypted - TLS/STARTTLS | 465 |
| SMTP (sending mail) | Encrypted - SSL | 465 |
| SMTP (sending mail) | Unencrypted | 25* (or 26) |
| POP3 (receiving mail) | Encrypted - TLS | 995 |
| POP3 (receiving mail) | Encrypted - SSL | 995 |
| POP3 (receiving mail) | Unencrypted | 110 |
| IMAP (receiving mail) | Encrypted - TLS | 993 |
| IMAP (receiving mail) | Encrypted - SSL | 993 |
| IMAP (receiving mail) | Unencrypted | 143 |