Trying to track down source of duplicate messages

[Aki Tuomi]

Can you try turning on mail_debug and see if you can reproduce the duplicate email issue?

Aki

> On 01 April 2019 at 19:40 Alex via dovecot <dovecot at dovecot.org> wrote:
> 
> 
> Hi,
> 
> I haven't received any responses to my duplicate messages problem. It
> occurred to me that I posted my full dovecot config instead of just
> the changes we've made locally. I thought it might help to follow up
> with just the specific config to make it easier to identify a
> potential problem.
> 
> Any ideas greatly appreciated.
> 
> # doveconf -n
> # 2.3.5 (513208660): /etc/dovecot/dovecot.conf
> # Pigeonhole version 0.5.5 (2483b085)
> # OS: Linux 4.20.11-100.fc28.x86_64 x86_64 Fedora release 28 (Twenty Eight)
> mail_gid = mail
> mail_home = mail/
> mail_location = mbox:~/mail:INBOX=/var/spool/mail/%u
> mail_max_userip_connections = 500
> mail_plugins = " listescape"
> mail_privileged_group = mail
> managesieve_notify_capability = mailto
> managesieve_sieve_capability = fileinto reject envelope
> encoded-character vacation subaddress comparator-i;ascii-numeric
> relational regex imap4flags copy include variables body enotify
> environment mailbox date index ihave duplicate mime foreverypart
> extracttext
> mbox_write_locks = fcntl
> namespace inbox {
>   inbox = yes
>   location =
>   mailbox Drafts {
>     special_use = \Drafts
>   }
>   mailbox Junk {
>     special_use = \Junk
>   }
>   mailbox Sent {
>     special_use = \Sent
>   }
>   mailbox "Sent Messages" {
>     special_use = \Sent
>   }
>   mailbox Trash {
>     special_use = \Trash
>   }
>   prefix =
> }
> passdb {
>   driver = pam
> }
> passdb {
>   driver = pam
> }
> protocols = imap pop3
> service auth {
>   unix_listener /var/spool/postfix/private/auth {
>     group = postfix
>     mode = 0660
>     user = postfix
>   }
> }
> service imap-login {
>   inet_listener imap {
>     port = 0
>   }
>   inet_listener imaps {
>     port = 993
>   }
>   process_min_avail = 20
>   service_count = 0
> }
> service pop3-login {
>   inet_listener pop3 {
>     port = 0
>   }
>   inet_listener pop3s {
>     address = 192.168.1.100
>     port = 995
>   }
> }
> ssl_cert = </etc/letsencrypt/fullchain.pem
> ssl_cipher_list =
> ALL:!LOW:!EXP:!aNULL:!RC4::!eNULL:!LOW:!3DES:!MD5:!EXP:!PSK:!SRP:!DSS
> ssl_dh = # hidden, use -P to show it
> ssl_key = # hidden, use -P to show it
> ssl_prefer_server_ciphers = yes
> userdb {
>   driver = passwd
> }
> userdb {
>   driver = passwd
> }
> 
> On Sat, Mar 30, 2019 at 4:09 PM Alex <mysqlstudent at gmail.com> wrote:
> >
> > Hi,
> >
> > I have a fedora28 system with dovecot-2.3.5 and I'm trying to figure
> > out why I'm increasingly receiving duplicate emails. The message IDs
> > are exactly the same. It's always two of the same messages. I don't
> > think it's ever occurred in the inbox. It doesn't happen with every
> > message or seemingly in every folder.
> >
> > I've read about dovecot deduplicate, but of course I want to prevent
> > them from being duplicated in the first place. It's also happening
> > much more frequently now.
> >
> > Could something in my configuration cause this problem?
> >
> > Below is the contents of my doveconf
> >