updating some obsolete text

#pop3_fast_size_lookups = no

# POP3 UIDL (unique mail identifier) format to use. You can use following

# variables, along with the variable modifiers described in

# doc/wiki/Variables.txt (e.g. %Uf for the filename in uppercase)

# variables with variable extension as described in

# https://doc.dovecot.org/latest/core/settings/variables.html

#

#  %v - Mailbox's IMAP UIDVALIDITY

#  %u - Mail's IMAP UID

#  %m - MD5 sum of the mailbox headers in hex (mbox only)

#  %f - filename (maildir only)

#  %g - Mail's GUID

#  %{uidvalidity} - Mailbox's IMAP UIDVALIDITY

#  %{uid} - Mail's IMAP UID

#  %{md5} - MD5 sum of the mailbox headers in hex (mbox only)

#  %{filename} - filename (maildir only)

#  %{guid} - Mail's GUID

#

# If you want UIDL compatibility with other POP3 servers, use:

#  UW's ipop3d         : %08Xv%08Xu

#  Courier             : %f or %v-%u (both might be used simultaneously)

#  Cyrus (<= 2.1.3)    : %u

#  Cyrus (>= 2.1.4)    : %v.%u

#  Dovecot v0.99.x     : %v.%u

#  tpop3d              : %Mf

#  UW's ipop3d         : %{uid | hex(8)}%{uidvalidity | hex(8)}

#  Courier             : %{filename} or %{uidvalidity}-%{uid} (both might be used simultaneously)

#  Cyrus (<= 2.1.3)    : %{uid}

#  Cyrus (>= 2.1.4)    : %{uidvalidity}.%{uid}

#  Dovecot v0.99.x     : %{uidvalidity}.%{uid}

#  tpop3d              : %{filename|md5}

#

# Note that Outlook 2003 seems to have problems with %v.%u format which was

# Note that Outlook 2003 seems to have problems with %{uidvalidity}.%{uid} format which was

# Dovecot's default, so if you're building a new server it would be a good

# idea to change this. %08Xu%08Xv should be pretty fail-safe.

# idea to change this. %{uid | hex(8)}%{uidvalidity | hex(8)} should be pretty fail-safe.

#

#pop3_uidl_format = %{uid | hex(8)}%{uidvalidity | hex(8)}

pop3_uidl_format = %{uidvalidity|hex(8)}%{uid|hex(8)}

# pop3_uidl_format = %08Xu%08Xv

#pop3_deleted_flag =

# POP3 logout format string:

#  %i - total number of bytes read from client

#  %o - total number of bytes sent to client

#  %t - number of TOP commands

#  %p - number of bytes sent to client as a result of TOP command

#  %r - number of RETR commands

#  %b - number of bytes sent to client as a result of RETR command

#  %d - number of deleted messages

#  %{deleted_bytes} - number of bytes in deleted messages

#  %m - number of messages (before deletion)

#  %s - mailbox size in bytes (before deletion)

#  %u - old/new UIDL hash. may help finding out if UIDLs changed unexpectedly

# %{input} - Bytes read from the client

# %{output} - Bytes sent to the client

# %{top_count} - Number of TOP commands run

# %{top_bytes} - Bytes sent to the client because of TOP commands

# %{retr_count} - Number of RETR commands run

# %{retr_bytes} - Bytes sent to the client because of RETR commands

# %{deleted_count} - Number of deleted messages

# %{deleted_bytes} - Number of bytes in deleted messages

# %{message_count} - Number of messages before deletion

# %{message_bytes} - Mailbox size, in bytes, before deletion

# %{uidl_change} - The old and the new UIDL hash (which can be useful for identifying unexpected changes in UIDLs)

#pop3_logout_format = top=%{top_count}/%{top_bytes}, retr=%{retr_count}/%{retr_bytes}, del=%{deleted_count}/%{deleted_bytes}, size=%{message_bytes}

pop3_logout_format = top=%t/%p, retr=%r/%b, del=%d/%m, size=%s, bytes=%i/%o

# Workarounds for various client bugs:

#   oe-ns-eoh:

#     Outlook Express and Netscape Mail breaks if end of headers-line is

#     missing. This option simply sends it if it's missing.

# The list is space-separated.

#pop3_client_workarounds = 

#pop3_client_workarounds {

#  outlook-no-nuls = yes

#}

protocol pop3 {

  namespace spam {

    hidden = yes

  }

  # Space separated list of plugins to load (default is global mail_plugins).

  #mail_plugins = $mail_plugins

  #mail_plugins {

  #}

  # Maximum number of POP3 connections allowed for a user from each IP address.

  # NOTE: The username is compared case-sensitively.