2016-04-19 22:13:47 -05:00
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# Setup relayhost
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2016-04-20 00:10:57 -05:00
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[TOC]
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2016-04-19 22:13:47 -05:00
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Relay host is a server which can accept your email and sent it out to the final
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destination for you.
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2016-04-20 00:10:57 -05:00
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## Global relay host
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2016-04-19 22:13:47 -05:00
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To setup a global relay host in iRedMail, please append below settings in
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Postfix config file `/etc/postfix/main.cf` (Linux/OpenBSD) or
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`/usr/local/etc/postfix/main.cf` (FreeBSD):
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```cfg
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relayhost = [relay_server]:25
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smtp_sasl_password_maps = hash:/etc/postfix/sasl_password
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smtp_sasl_auth_enable = yes
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smtp_sasl_mechanism_filter = login
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smtp_sasl_security_options = noanonymous
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```
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!!! note
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* You should relace `relay_server` above by the real server address. for
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example, `relayhost = [37.61.54.158]:25`, `relayhost = [smtp.gmail.com]:25`.
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* For more possible values/formats, please check Postfix document:
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[Postfix transport table format (transport)](http://www.postfix.org/transport.5.html).
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Then write the username and password in `/etc/postfix/sasl_password`:
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```cfg
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relay.server user:password
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```
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Run `postmap` and restart Postfix service:
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```cmd
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postmap hash:/etc/postfix/sasl_password
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service postfix restart
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```
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2016-04-20 00:10:57 -05:00
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## Sender dependent relay host
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!!! note
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* Sender dependent relay host is available in iRedMail-0.9.5 or later releases.
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### Manage with iRedAdmin-Pro
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Since iRedAdmin-Pro-SQL-2.4.0 or iRedAdmin-Pro-LDAp-2.6.0, it's able to manage
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per-domain or per-user sender dependent relay host in domain or user profile
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2016-04-20 00:21:43 -05:00
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page, under tab `Relay`. Screenshot attached.
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2016-04-20 00:10:57 -05:00
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### Manage with command line tools
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#### MySQL, MariaDB, PostgreSQL
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For SQL backends, you can manage sender dependent relay host in SQL table
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`mailbox.sender_relayhost`. We use MySQL for example below.
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* Per-domain sender dependent relay host:
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```
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sql> USE vmail;
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sql> INSERT INTO sender_relayhost (account, relayhost) VALUES ('@domain.com', '[mail.gmail.com]:25');
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```
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* Per-user sender dependent relay host:
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```
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sql> USE vmail;
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sql> INSERT INTO sender_relayhost (account, relayhost) VALUES ('user@domain.com', '[mail.gmail.com]:25');
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```
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#### OpenLDAP
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For OpenLDAP backend:
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* per-domain sender dependent relay host is stored in attribute `senderRelayHost` of domain account.
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* per-user sender dependent relay host is stored in attribute `senderRelayHost` of user account.
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Sample LDIF data:
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* Per-domain sender dependent relay host
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```
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dn: domainName=mydomain.com,o=domains,dc=example,dc=com
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senderRelayHost: [mail.gmail.com]:25
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...
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```
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* Per-user sender dependent relay host
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```
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dn: mail=user@mydomain.com,ou=Users,domainName=mydomain.com,o=domains,dc=example,dc=com
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senderRelayHost: [mail.gmail.com]:25
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...
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```
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### Screenshot of iRedAdmin-Pro
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* iRedAdmin-Pro: Per-domain relay setting:
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* iRedAdmin-Pro: Per-user relay setting:
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