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62 lines
2.6 KiB
Markdown
62 lines
2.6 KiB
Markdown
Running email in dn42 is not very complicated. Your SMTP daemon probably already listens on the wildcard address, so you mostly need to:
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* open your firewall to allow TCP/25 from dn42
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* setup DNS (MX records, or simply relevant A records)
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* configure your mail server if needed
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## Redirect
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There are forwarding rules for _PERSON_ @ dn42.org to the mail addresses which hav been given in the registry. Please note that the trailing `-DN42` is stripped from the local part.
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####Example####
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| Handle | Alias | Redirection |
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|:------------ |:-------------- |:--------------------- |
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| `STV0G-DN42` | stv0g@dn42.org | post@steffenvogel.de` |
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## Exim tips
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### Sending emails
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By default on Debian, Exim refuses to send mail to other mailservers when they resolve to RFC1918 addresses. This will manifest by the following error message when trying to send a mail:
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** foo@bar.dn42: all relevant MX records point to non-existent hosts
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This is controlled by the `ignore_target_hosts` variable in the configuration file.
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### Receiving emails
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Don't forget to add your dn42 domains to the list of local domains, so that you accept incoming emails. On Debian, it is controlled by `dc_other_hostnames` in `update-exim4.conf.conf`. For instance:
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dc_other_hostnames='myself.org;myself.dn42;myserver.myself.dn42'
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## Postfix
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### Sending Mails
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If your machine sends/receives Mails in "clearnet" with specific bound IP's you need to create an additional transport in master.cf
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out_dn42 unix - - n - - smtp
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-o smtp_bind_address=172.23.67.1
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-o smtp_bind_address6=fd70:96c9:ef25::1
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-o smtp_helo_name=ns1.mhm.dn42
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-o syslog_name=postfix-dn42
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and add this transport to /etc/postfix/transport for dn42 (and dont forget to postmap)
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.dn42 out_dn42:
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This should to the trick for sending mails via your DN42-IP
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### Receiving emails
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The Domain mails should be received for has to be added to `mydestination =` in main.cf
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## New SMTP RFC SMTPUTF8
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### EAI
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Email Address Internationalization (EAI) as defined in [RFC 6531](http://tools.ietf.org/html/rfc6531) (SMTPUTF8 extension), [RFC 6532](http://tools.ietf.org/html/rfc6532) (Internationalized email headers) and [RFC 6533](http://tools.ietf.org/html/rfc6533) (Internationalized delivery status notifications).
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### Postfix
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Introduced with Postfix version 3.0, this fully supports UTF-8 email addresses and UTF-8 message header values.
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more at the [SMTPUTF8_README](http://www.postfix.org/SMTPUTF8_README.html).
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### Exim
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Watch Exims EAI Tracker [Bug 1177](http://bugs.exim.org/show_bug.cgi?id=1177) |