Port 465SMTPS
SMTP over TLS
About Port 465
Port 465 is used for SMTP with implicit TLS encryption for secure email submission. It provides end-to-end encryption for email transmission from client to server.
Security NotesEnsure valid TLS certificates and strong cipher suites are configured. Port 465 is preferred over STARTTLS on port 587 for implicit security.
Total Hosts
5.3M
TLS Encrypted
100.0%
Vulnerable Hosts
781.0K
Countries
10+
Top Services
| smtp | 5,051,562 |
| http | 156,422 |
| https | 104,676 |
| ftp | 3,668 |
| smtp-proxy | 1,437 |
| http-proxy | 672 |
| firewall | 371 |
| router | 361 |
| nas | 340 |
| home-automation | 293 |
Top Countries
 United States | 1,442,122 |
 Germany | 893,344 |
 Netherlands | 294,255 |
 Japan | 245,717 |
 United Kingdom | 245,256 |
 Poland | 176,275 |
 France | 175,316 |
 Spain | 137,469 |
 Canada | 137,445 |
 Russia | 132,096 |
Top Products
| Exim smtpd | 1,884,912 |
| Postfix smtpd | 1,842,151 |
| MailEnable smptd | 56,215 |
| Sendmail | 48,436 |
| Dovecot | 19,623 |
| Tengine | 19,098 |
| Kerio Connect smtpd | 18,610 |
| FortiMail smtpd | 13,551 |
| Google gsmtp | 12,225 |
| Alt-N MDaemon mail server | 6,191 |