Hi there,

anyone with any statement on this topic?

Greetings,

Paul

Am 15.05.2019 um 13:27 schrieb Paul Muster via dovecot:

Hi,

way forward could be like this:

1. Introduce a new config option 'detail_affix' with parameters 'prefix' and 'suffix', defaulting to 'suffix' making sure not to break existing setups using <user><delimiter><suffix> respectively :user<delimiter>:detail format. If 'detail_affix' is switched to 'prefix' the expected format of local parts turns into <prefix><delimiter><user> respectively :detail<delimiter>:user.

2. Add documentation to the Wiki https://wiki2.dovecot.org/LMTP:

• detail_affix = suffix

3. Add description to the relevant default config files¹:

  # The separator that is expected between the :user and :detail # address parts introduced by the subaddress extension. This may # also be a sequence of characters (e.g. '--'). The current # implementation looks for the separator from the left of the # localpart and uses the first one encountered. The :user part is # left of the separator and the :detail part is right. This setting # is also used by Dovecot's LMTP service. #recipient_delimiter = + +

• # Define if :detail is a prefix or a suffix to the :user address part,
• # e.g. left or right, when using subaddress extension.
• # Defaults to 'suffix' making sure not to break existing setups using
• # <user><delimiter><suffix> format.
• # Switch to 'prefix' if you use the <prefix><delimiter><user> format
• # described in RfC 5233.
• #detail_affix = suffix

4. Changelog

   + now we _fully_ support IETF RfC 5233² (Sieve Subaddress Extension), see new config parameter 'detail_affix'.

What do you think?

Thanks & greetings,

Paul

¹ On my Debian this is /etc/dovecot/conf.d/20-lmtp.conf and /etc/dovecot/conf.d/90-sieve.conf

² https://tools.ietf.org/html/rfc5233

Am 13.05.2019 um 21:48 schrieb Paul Muster via dovecot:

...

Hi there,

Dovecot's LMTP implementation and Pigeonhole Sieve already do support the <user><delimiter><suffix> format. RfC 5233, the Sieve subaddress extension, also offers <prefix><delimiter><user>.

Could Docecot's LMTP and Pigeonhole be extended to that effect?

Thanks & greetings,

Paul