local stanza only generated for IPv6

[Jeremy Ardley]

I have a mail server with multiple IP addresses and associated DNS names

In the dovecot configuration I have a listen directive:

    listen = mail.example.com.com,mail.otherexample.com,localhost

Multiple local stanzas are of the form:

local mail.example.com {
  protocol imap {
     ssl_cert = </etc/letsencrypt/live/mail.example.com/fullchain.pem
     ssl_key = </etc/letsencrypt/live/mail.example.com/privkey.pem

     service imaps_login {
       inet_listener imaps {
         address=mail.example.com
       }
       inet_listener imap {
         address=mail.example.com
       }
     }
  }
}

mail.example.com has IPv4 and IPv6 addresses in DNS

When I run doveconf -n the local configuration is only generated for the
IPv6 address. I can test the operation on IPv6 using openSSL and see
different server certificates on different IP addresses as expected.

How do I force local generation for both IPv4 and IPv6 ?

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