Port 993 IMAPS
IMAP over TLS
About Port 993
IMAPS provides encrypted IMAP access using TLS. It is the secure standard for email client connections to mail servers.
Security Notes
Use strong TLS configurations and require certificate validation on the client side.
Total Hosts
12.6M
TLS Encrypted
100.0%
Vulnerable Hosts
12.5K
Countries
10+
Top Services
| imap | 12,173,853 |
| http | 283,498 |
| https | 160,800 |
| http-proxy | 2,662 |
| nagios-nsca | 2,588 |
| imap-proxy | 914 |
| nas | 836 |
| firewall | 741 |
| home-automation | 648 |
| telnet | 463 |
Top Countries
 United States |
2,801,843 |
 Germany |
1,743,587 |
 Netherlands |
655,353 |
 United Kingdom |
493,173 |
 Japan |
472,055 |
 France |
457,717 |
 Poland |
346,390 |
 Canada |
301,539 |
 Russia |
274,392 |
 Romania |
265,945 |
Top Products
| Dovecot imapd | 8,428,610 |
| Courier Imapd | 279,452 |
| Microsoft Exchange 2007-2010 imapd | 117,379 |
| Kerio Connect imapd | 78,949 |
| Plesk | 63,079 |
| Cyrus imapd | 61,294 |
| SmarterMail imapd | 57,678 |
| HTTP | 50,590 |
| Tengine | 28,105 |
| Zimbra imapd | 23,460 |