Ports

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Default Ports Used by Zimbra

You may choose not to allow remote connections to all of these. In a multi-node environment:

  • all nodes will need access to
    • the ldap server or servers (389) and
    • the logger server (514)
  • mta nodes will need access to lmtp on all mailbox nodes (7025)
  • mailbox nodes will need admin port access to other mailbox nodes (7071)

External Access

These are ports typically available to mail clients.

25
smtp [mta] - incoming mail to postfix
80
http [mailbox] - web mail client (disabled by default: 8.0)
110
pop3 [mailbox]
143
imap [mailbox]
443
https [mailbox] - web mail client: HTTP over TLS
465
smtps [mta] - incoming mail to postfix over TLS (Legacy Outlook only? If possible, use 587 instead)
587
smtp [mta] - Mail submission over TLS
993
imaps [mailbox] - IMAP over TLS
995
pop3s [mailbox] - POP3 over TLS
9071
https [nginx => mailbox] - proxy admin console: HTTP over TLS (if enabled)

Internal Access

These are ports typically only used by the zimbra system itself.

389
ldap [ldap]
636
ldaps [ldaps] - if enabled
7025
lmtp [mailbox] - local mail delivery
7047
http [conversion server]
7071
https [mailbox] - admin console: HTTP over TLS
7072
http [mailbox] - ZCS Nginx Lookup (backend http service for nginx lookup/authentication)
7110
pop3 [mailbox] - Backend POP3 (if proxy configured)
7143
imap [mailbox] - Backend IMAP (if proxy configured)
7306
mysql [mailbox]
7307
mysql [logger] - logger (removed: ZCS 7)
7780
http [mailbox] - spell check
7993
imaps [mailbox] - Backend IMAP over TLS (if proxy configured)
7995
pop3s [mailbox] - Backend POP3 over TLS (if proxy configured)
8080
http [mailbox] - Backend HTTP (if proxy configured on same host, disabled by default: 8.0)
8443
https [mailbox] - Backend HTTPS (if proxy configured on same host)
10024
smtp [mta] - to amavis from postfix
10025
smtp [mta] - back to postfix from amavis
11211
memcached [proxy] - nginx route lookups

System Access

22
ssh
53
dns
514
syslogd [logger] (udp)
Verified Against: unknown Date Created: 4/4/2006
Article ID: http://wiki.zimbra.com/index.php?title=Ports Date Modified: 03/6/2015
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