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smtp : sendmail

smtp : sendmail. 安裝 win7 telnet.exe (test 用 ). 控制台 > 程式集 > 開啟或關閉 Windows 功能 > 勾 Telnet 用戶端. 安裝 sendmail. rpm - qa | grep sendmail yum -y install sendmail sendmail-cf chkconfig --list sendmail ( 預設開機啟動 ). 設定 sendmail.cf, 讓 sendmail 可以給外部連線. 修改前 win7 telnet

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smtp : sendmail

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  1. smtp: sendmail

  2. 安裝 win7 telnet.exe (test用) • 控制台 > 程式集 > 開啟或關閉Windows功能> 勾 Telnet用戶端

  3. 安裝sendmail • rpm -qa | grepsendmail • yum -y install sendmailsendmail-cf • chkconfig --list sendmail • (預設開機啟動)

  4. 設定 sendmail.cf,讓sendmail可以給外部連線 • 修改前 win7 telnet • telnet dns.qlapita.com 25 不能連 • 正連線到 dns.qlapita.com...無法開啟到主機的連線， 在連接埠 25: 連線失敗 • vim /etc/mail/sendmail.cf • Search Addr=127.0.0.1 > 預設 127.0.0.1 無法給外部連線, 改為 Addr=0.0.0.0 • 重跑 sendmail, if fail, restart again • win7 test: telnet dns.qlapita.com 25 220 dns.qlapita.com ESMTP Sendmail 8.14.4/8.14.4; Mon, 28 Oct 2013 11:06:28 +0800

  5. 設定 sendmail正確 permission, 才可以正確的對外部發信,否則會 relaying denied • # vim /etc/mail/access增加:Connect:10.10.88.* RELAYConnect:120.125.144.* RELAYConnect:120.125.145.* RELAY自己視情況加,若要全部開放,請加:Connect:*.* RELAY • 注意,網段最後一碼是*,不是0 • 最後要透過上述新設定內容,製作新的 access.db檔,給sendmail讀取: • makemap hash /etc/mail/access.db < /etc/mail/access

  6. 設定user@dns.lapita.com&user@lapita.com都可以收發email設定user@dns.lapita.com&user@lapita.com都可以收發email • 目前,只有user@dns.lapita.com可以收發 email,若要讓user@lapita.com也可以收發 email,請修改: • vim /etc/mail/local-host-names加下面兩行:qlapita.comdns.qlapita.com • service sendmail restart

  7. Win7 outlook 設定aa@qlapita.com & bb@qlapita.com • aa@qlapita.com • 寄一封email給自己 & bb@qlapita.com • aa & bb都要收到信, 如下

  8. aa@qlapita.com寄給 santana@csie.ncu.edu.tw • 等一會後,會收到系統回信 • 伺服器錯誤: '550 5.7.1 <santana@csie.ncu.edu.tw>... Relaying denied. • 未合法申請 domain,無法寄到外面的email! • reboot • 開始安裝&設定 openwebmail

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