Repeat e-mail syndrome shows up in 2.2.26+

[Juan Bernhard]

El 01/11/2016 a las 01:26 p.m., The Doctor escribió:
> Getting complaints from people about pop/imap
>
> issues.
>
> some people are getting repaeted e-mail.
>
> Other are not able to delete their e-mails from an IMAP lcient.
Did you try to delete the dovecots cache? I had the same problem once, 
when I restored a backup of some mails. I deleted all dovecot.index* on 
home directories of the user
>
> Current configuration
>
> /usr/dovecot2/sbin/dovecot -n
> # 2.2.26.0 (23d1de6): /usr/dovecot2/etc/dovecot/dovecot.conf
> # OS: FreeBSD 11.0-RELEASE-p2 amd64
> base_dir = /var/run/dovecot/
> disable_plaintext_auth = no
> first_valid_uid = 100
> info_log_path = /var/log/dovecot-info.log
> listen = [::]
> log_path = /var/log/dovecot.log
> login_log_format_elements = user=<%u> method=%m rip=%r lip=%l %c
> mail_debug = yes
> mail_location = mbox:~/mail:INBOX=/var/mail/%u
> mail_log_prefix = %Us(%u):
> mdbox_rotate_size = 2 k
> passdb {
>    args = /etc/master.passwd
>      driver = passwd-file
>      }
>      plugin {
>        home = /usr/dovecot2
>        }
>        service auth {
> 	executable = /usr/dovecot2/libexec/dovecot/auth
> 	  user = root
> 	  }
> 	  service imap-login {
> 	    chroot = login
> 	      client_limit = 256
> 		executable = /usr/dovecot2/libexec/dovecot/imap-login
> 		  inet_listener imap {
> 		      address = 204.209.81.1, 127.0.0.1
> 			  port = 143
> 			    }
> 			      inet_listener imaps {
> 				  address = 204.209.81.1, 127.0.0.1
> 				      port = 993
> 					  ssl = yes
> 					    }
> 					      process_limit = 128
> 						process_min_avail = 3
> 						  service_count = 1
> 						    user = dovecot
> 						    }
> 						    service imap {
> 						      executable = /usr/dovecot2/libexec/dovecot/imap
> 							process_limit = 512
> 							}
> 							service lmtp {
> 							  executable = lmtp -L
> 							    inet_listener lmtp {
> 								address = 204.209.81.1 127.0.0.1 ::1
> 								    port = 24
> 								      }
> 									process_min_avail = 5
> 									}
> 									service pop3-login {
> 									  chroot = login
> 									    client_limit = 256
> 									      executable = /usr/dovecot2/libexec/dovecot/pop3-login
> 										inet_listener pop3 {
> 										    address = 204.209.81.1
> 											port = 110
> 											  }
> 											    inet_listener pop3s {
> 												address = 204.209.81.1
> 												    port = 995
> 													ssl = yes
> 													  }
> 													    process_limit = 128
> 													      process_min_avail = 3
> 														service_count = 1
> 														  user = dovecot
> 														  }
> 														  service pop3 {
> 														    executable = /usr/dovecot2/libexec/dovecot/pop3
> 														      process_limit = 512
> 														      }
> 														      ssl_cert = </usr/dovecot2/etc/dovecot/ssl/pop3.nk.ca.2016.chain.crt
> 														      ssl_cipher_list = ALL:!LOW:!SSLv2:!EXP:aNULL
> 														      ssl_key =  # hidden, use -P to show it
> 														      userdb {
> 															driver = passwd
> 															}
> 															userdb {
> 															  args = /etc/passwd
> 															    driver = passwd-file
> 															    }
> 															    verbose_ssl = yes
> 															    protocol imap {
> 															      imap_client_workarounds = delay-newmail tb-extra-mailbox-sep
> 																imap_idle_notify_interval = 2 mins
> 																  imap_logout_format = bytes=%i/%o
> 																    imap_max_line_length = 64 k
> 																      mail_max_userip_connections = 10
> 																	mail_plugin_dir = /usr/dovecot2/lib/dovecot/imap
> 																	  ssl_cert = </usr/dovecot2/etc/dovecot/ssl/pop3.nk.ca.2016.chain.crt
> 																	    ssl_cipher_list = ALL:!LOW:!SSLv2:!EXP:aNULL
> 																	      ssl_key =  # hidden, use -P to show it
> 																		verbose_ssl = yes
> 																		}
> 																		protocol pop3 {
> 																		  mail_max_userip_connections = 3
> 																		    mail_plugins =
> 																		      pop3_client_workarounds = outlook-no-nuls oe-ns-eoh
> 																			pop3_enable_last = yes
> 																			  pop3_lock_session = yes
> 																			    pop3_logout_format = top=%t/%p, retr=%r/%b, del=%d/%m, size=%s
> 																			      pop3_no_flag_updates = yes
> 																				pop3_reuse_xuidl = yes
> 																				  pop3_save_uidl = no
> 																				    pop3_uidl_format = %08Xu%08Xv
> 																				      ssl_cert = </usr/dovecot2/etc/dovecot/ssl/pop3.nk.ca.2016.chain.crt
> 																					ssl_cipher_list = ALL:!LOW:!SSLv2:!EXP:aNULL
> 																					  ssl_key =  # hidden, use -P to show it
> 																					    verbose_ssl = yes
> 																					    }
> 																					    protocol lmtp {
> 																					      auth_username_format = %Lu
> 																						info_log_path = /var/log/dovecot-lmtp.log
> 																						}
>
>
> Sorry about the indents.
>
> Anything causing these issues?
>