Настройка exim4 для отправки писем через gmail в Debian Squeeze.

root@test:~# dpkg-reconfigure exim4-config

Package configuration


 ┌───────────────────────┤ Mail Server configuration ├───────────────────────┐
 │                                                                           │
 │ Please select the mail server configuration type that best meets your     │
 │ needs.                                                                    │
 │                                                                           │
 │ Systems with dynamic IP addresses, including dialup systems, should       │
 │ generally be configured to send outgoing mail to another machine, called  │
 │ a 'smarthost' for delivery because many receiving systems on the          │
 │ Internet block incoming mail from dynamic IP addresses as spam            │
 │ protection.                                                               │
 │                                                                           │
 │ A system with a dynamic IP address can receive its own mail, or local     │
 │ delivery can be disabled entirely (except mail for root and postmaster).  │
 │                                                                           │
 │                                  <Ok>                               │
 │                                                                           │
 └───────────────────────────────────────────────────────────────────────────┘

Жмем ОК и читаем далее

Package configuration




    ┌─────────────────────┤ Mail Server configuration ├─────────────────────┐
    │ General type of mail configuration:                                   │
    │                                                                       │
    │     internet site; mail is sent and received directly using SMTP      │
    │     mail sent by smarthost; received via SMTP or fetchmail            │
    │     mail sent by smarthost; no local mail                             │
    │     local delivery only; not on a network                             │
    │     no configuration at this time                                     │
    │                                                                       │
    │                                                                       │
    │                  <Ok>                      <Cancel>       │
    │                                                                       │
    └───────────────────────────────────────────────────────────────────────┘

Выбираем 2 пункт mail sent by smarthost; received via SMTP or fetchmail

Package configuration

  ┌───────────────────────┤ Mail Server configuration ├───────────────────────┐
  │ The 'mail name' is the domain name used to 'qualify' mail addresses       │
  │ without a domain name.                                                    │
  │                                                                           │
  │ This name will also be used by other programs. It should be the single,   │
  │ fully qualified domain name (FQDN).                                       │
  │                                                                           │
  │ Thus, if a mail address on the local host is foo@example.org, the         │
  │ correct value for this option would be example.org.                       │
  │                                                                           │
  │ This name won't appear on From: lines of outgoing messages if rewriting   │
  │ is enabled.                                                               │
  │                                                                           │
  │ System mail name:                                                         │
  │                                                                           │
  │ test_____________________________________________________________________ │
  │                                                                           │
  │                    <Ok>                        <Cancel>       │
  │                                                                           │
  └───────────────────────────────────────────────────────────────────────────┘

Здесь нужно указать ваш hostname

Package configuration
  ┌───────────────────────┤ Mail Server configuration ├───────────────────────┐
  │ Please enter a semicolon-separated list of IP addresses. The Exim SMTP    │
  │ listener daemon will listen on all IP addresses listed here.              │
  │                                                                           │
  │ An empty value will cause Exim to listen for connections on all           │
  │ available network interfaces.                                             │
  │                                                                           │
  │ If this system only receives mail directly from local services (and not   │
  │ from other hosts), it is suggested to prohibit external connections to    │
  │ the local Exim daemon. Such services include e-mail programs (MUAs)       │
  │ which talk to localhost only as well as fetchmail. External connections   │
  │ are impossible when 127.0.0.1 is entered here, as this will disable       │
  │ listening on public network interfaces.                                   │
  │                                                                           │
  │ IP-addresses to listen on for incoming SMTP connections:                  │
  │                                                                           │
  │ 127.0.0.1 ;______________________________________________________________ │
  │                                                                           │
  │                    <Ok>                        <Cancel>       │
  │                                                                           │
  └───────────────────────────────────────────────────────────────────────────┘

Указываем ip адреса(разделитель ;) на котором exim будет слушать порт. Для того чтобы exim слушал на все интерфейсах, оставьте это поле пустым. Если exim используется только для локальных сервисов и не предоставляет сервис другим хостам, укажите следующий ip 127.0.0.1

Package configuration




      ┌───────────────────────┤ Mail Server configuration ├───────────────────────┐
      │ Please enter a semicolon-separated list of recipient domains for which    │ 
      │ this machine should consider itself the final destination. These domains  │ 
      │ are commonly called 'local domains'. The local hostname (test) and        │ 
      │ 'localhost' are always added to the list given here.                      │ 
      │                                                                           │ 
      │ By default all local domains will be treated identically. If both         │ 
      │ a.example and b.example are local domains, acc@a.example and              │ 
      │ acc@b.example will be delivered to the same final destination. If         │ 
      │ different domain names should be treated differently, it is necessary to  │ 
      │ edit the config files afterwards.                                         │ 
      │                                                                           │ 
      │ Other destinations for which mail is accepted:                            │ 
      │                                                                           │ 
      │ _________________________________________________________________________ │ 
      │                                                                           │ 
      │                    <Ok>                  <Cancel>             │ 
      │                                                                           │ 
      └───────────────────────────────────────────────────────────────────────────┘ 
                                                                                    

Если ваш хост имеет другие доменные имена. То самое время их ввести(разделитель ;)
Т.к как у меня нет то я оставляю это поле пустым.

Package configuration





      ┌───────────────────────┤ Mail Server configuration ├───────────────────────┐
      │ Please enter a semicolon-separated list of IP address ranges for which    │ 
      │ this system will unconditionally relay mail, functioning as a smarthost.  │ 
      │                                                                           │ 
      │ You should use the standard address/prefix format (e.g. 194.222.242.0/24  │ 
      │ or 5f03:1200:836f::/48).                                                  │ 
      │                                                                           │ 
      │ If this system should not be a smarthost for any other host, leave this   │ 
      │ list blank.                                                               │ 
      │                                                                           │ 
      │ Machines to relay mail for:                                               │ 
      │                                                                           │ 
      │ smtp.gmail.com::587______________________________________________________ │ 
      │                                                                           │ 
      │                      <Ok>                  <Cancel>           │ 
      │                                                                           │ 
      └───────────────────────────────────────────────────────────────────────────┘ 

Вводим данные smarthost(SMTP сервер и порт, через который будет отправляться почта). smtp.gmail.com::587

ackage configuration








      ┌───────────────────────┤ Mail Server configuration ├───────────────────────┐
      │                                                                           │ 
      │ The headers of outgoing mail can be rewritten to make it appear to have   │ 
      │ been generated on a different system. If this option is chosen, 'test',   │ 
      │ 'localhost' and '' in From, Reply-To, Sender and Return-Path are          │ 
      │ rewritten.                                                                │ 
      │                                                                           │ 
      │ Hide local mail name in outgoing mail?                                    │ 
      │                                                                           │ 
      │                     <Yes>                  <No>               │ 
      │                                                                           │ 
      └───────────────────────────────────────────────────────────────────────────┘ 
                                                                                    

Скрывать локальные имена выбираем No.

Package configuration



      ┌──────────────────────┤ Mail Server configuration ├───────────────────────┐
      │                                                                          │ 
      │ In normal mode of operation Exim does DNS lookups at startup, and when   │ 
      │ receiving or delivering messages. This is for logging purposes and       │ 
      │ allows keeping down the number of hard-coded values in the               │ 
      │ configuration.                                                           │ 
      │                                                                          │ 
      │ If this system does not have a DNS full service resolver available at    │ 
      │ all times (for example if its Internet access is a dial-up line using    │ 
      │ dial-on-demand), this might have unwanted consequences. For example,     │ 
      │ starting up Exim or running the queue (even with no messages waiting)    │ 
      │ might trigger a costly dial-up-event.                                    │ 
      │                                                                          │ 
      │ This option should be selected if this system is using Dial-on-Demand.   │ 
      │ If it has always-on Internet access, this option should be disabled.     │ 
      │                                                                          │ 
      │ Keep number of DNS-queries minimal (Dial-on-Demand)?                     │ 
      │                                                                          │ 
      │                   <Yes>                  <No>                │ 
      │                                                                          │ 
      └──────────────────────────────────────────────────────────────────────────┘ 
                                                                                 

Выбираем No.

Package configuration





      ┌───────────────────────┤ Mail Server configuration ├───────────────────────┐
      │ Exim is able to store locally delivered email in different formats. The   │ 
      │ most commonly used ones are mbox and Maildir. mbox uses a single file     │ 
      │ for the complete mail folder stored in /var/mail/. With Maildir format    │ 
      │ every single message is stored in a separate file in ~/Maildir/.          │ 
      │                                                                           │ 
      │ Please note that most mail tools in Debian expect the local delivery      │ 
      │ method to be mbox in their default.                                       │ 
      │                                                                           │ 
      │ Delivery method for local mail:                                           │ 
      │                                                                           │ 
      │                     mbox format in /var/mail/                             │ 
      │                     Maildir format in home directory                      │ 
      │                                                                           │ 
      │                                                                           │ 
      │                    <Ok>                  <Cancel>             │ 
      │                                                                           │ 
      └───────────────────────────────────────────────────────────────────────────┘ 
                                                                                    

Выбираем формат mbox.

Package configuration




      ┌───────────────────────┤ Mail Server configuration ├───────────────────────┐
      │                                                                           │ 
      │ The Debian exim4 packages can either use 'unsplit configuration', a       │ 
      │ single monolithic file (/etc/exim4/exim4.conf.template) or 'split         │ 
      │ configuration', where the actual Exim configuration files are built from  │ 
      │ about 50 smaller files in /etc/exim4/conf.d/.                             │ 
      │                                                                           │ 
      │ Unsplit configuration is better suited for large modifications and is     │ 
      │ generally more stable, whereas split configuration offers a comfortable   │ 
      │ way to make smaller modifications but is more fragile and might break if  │ 
      │ modified carelessly.                                                      │ 
      │                                                                           │ 
      │ A more detailed discussion of split and unsplit configuration can be      │ 
      │ found in the Debian-specific README files in /usr/share/doc/exim4-base.   │ 
      │                                                                           │ 
      │ Split configuration into small files?                                     │ 
      │                                                                           │ 
      │                     <Yes>                  <No>               │ 
      │                                                                           │ 
      └───────────────────────────────────────────────────────────────────────────┘ 

Соединить конфигурационные файлы в один. Кому как нравиться я выбираю No.
Используя ваш любимый редактор в файл /etc/exim4/passwd.client
Добавляем строчку *.google.com:Логин@gmail.com:Пароль
После чего выполняем команду

root@test:~# update-exim4.conf

Далее открываем файл почтовых псевдонимов. /etc/aliases И добавляем туда псевдоним для пользователя письма которому должны уходить на внешнюю почту.
локальный_пользователь:почтовый_псевдоним.

Вот так я получаю на свой email сообщения от системы.
И отчеты работы утилиты logcheck.
Как настроить logcheck читаем logcheck держим руку на пульсе. Установка в Debian. Аудит журналов Linux.