How to get original recipient from Postfix when using LMTP?

[Tuomo Soini]

On Tue, 21 May 2019 18:24:46 +0000
MRob via dovecot <dovecot at dovecot.org> wrote:

> Many people prefer to use LMTP for delivery from postfix for better 
> efficiency but X-Original-to header support still missing after many 
> years. One affect of this is need to set 
> sieve_vacation_dont_check_recipient = yes which violate Sieve
> standard and cause auto-replyies sent to messages that should not
> happen. Or abandon LMTP. or abandon postfix??
> 
> So while feature request is stalled are there any realistic
> workarounds?

add to smtp_recipient_restrictions, before permitting email but after
all checks:

    check_recipient_access pcre:/etc/postfix/recipient_access.pcre

# cat /etc/postfix/recipient_access.pcre 
/(.+)/ prepend X-Original-To: $1

-- 
Tuomo Soini <tis at foobar.fi>
Foobar Linux services
+358 40 5240030
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