postfix connects to dovecot lmtp socket, but nothing is delivered

[Gerben Wierda]

Boy do I feel stupid.

protocols was not set in the new version's dovecot.conf. And default it only contains imap. My old server had an override in dovecot.conf and I copied conf.d over but started with afresh dovecot.conf, so lmtp was missing.

G

> On 5 Jan 2023, at 18:39, Gerben Wierda <gerben.wierda at rna.nl> wrote:
> 
>> On 5 Jan 2023, at 18:17, dovecot at ptld.com <mailto:dovecot at ptld.com> wrote:
>> 
>>> service lmtp {
>>> inet_listener lmtp {
>>> address = 127.0.0.1
>>> port = 24
>>> }
>> 
>>> unix_listener /var/spool/postfix/private/lmtp {
>>> mode = 0660
>>> user = postfix
>>> group = postfix
>>> }
>> 
>> 
>> Looks like you are activating both a socket and a port. Im not sure what dovecot does, does it bind to both or does it pick one and ignore the other. You only need to use one or the other.
>> 
>> And what does your postfix side look like? Where is postfix trying to connect? To the socket or the port? For using a socket postfix would look something like:
>> 
>>    virtual_transport = lmtp:unix:private/lmtp
>> 
> 
> I removed the tcp port for now.
> 
> / # doveconf service/lmtp
> service lmtp {
>   chroot = 
>   client_limit = 1
>   drop_priv_before_exec = no
>   executable = lmtp
>   extra_groups = $default_internal_group
>   group = 
>   idle_kill = 0
>   privileged_group = 
>   process_limit = 0
>   process_min_avail = 0
>   protocol = lmtp
>   service_count = 0
>   type = 
>   unix_listener /var/spool/postfix/private/dovecot-lmtp {
>     group = mail
>     mode = 0660
>     user = postfix
>   }
>   unix_listener lmtp {
>     group = 
>     mode = 0666
>     user = 
>   }
>   user = 
>   vsz_limit = 18446744073709551615 B
> }
> 
> postfix config:
> 
> mailbox_transport = lmtp:unix:private/dovecot-lmtp
> virtual_transport = lmtp:unix:private/dovecot-lmtp
> 
> I had confused postfix's own lmtp socket with dovecot's, which was originally named dovecot-lmtp but when it wasn't created I though my config was wrong.
> 
> What seems to happen is that /var/spool/postfix/private/dovecot-lmtp isn't created by dovecot at launch, but /var/spool/postfix/private/auth is
> 
> G

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