因为qq邮箱的一些安全设置，本机用mail命令投递的邮件
smtp服务器用的是localhost的sendmail或者postfix
所以邮件的from是来自localhost.localdomain邮件
qq一律拒之！
并且返回550错误
此处配置mail命令使用远程的qq的SMTP服务器发送邮件，并用qq邮箱登录
1.配置发送环境
# cat /etc/mail.rc |grep -v -E "^#|^$"
set hold
set append
set ask
set crt
set dot
set keep
set emptybox
set indentprefix="> "
set quote
set sendcharsets=iso-8859-1,utf-8
set showname
set showto
set newmail=nopoll
set autocollapse
ignore received in-reply-to message-id references
ignore mime-version content-transfer-encoding
fwdretain subject date from to
set bsdcompat
set from=994414615\@ smtp=smtp.//邮件来自
set smtp-auth-user=994414615\@ smtp-auth-password=YOUPASSWORD smtp-auth=login //登录qq SMTP服务器的用户名和密码*********************************************************************
注意：上配置文件中的from项和user项中的qq不可取消，不然shell
会将@当特殊符处理！
*********************************************************************
2.发送命令
# echo "a test mail to qq mail server\!\!"|mail -s caiwenguang 994414615@
可以用qq邮箱接收报警邮件，这样如果qq在线的话可以有邮件可以随时提示！
昨完测试之后，打算将此应用到服务器上，结果maillog中抛出错误
Mar 31 14:43:26 web-server01 sendmail[30245]: s2V6hP11030245: to=EOT,994414615@, ctladdr=root (0/0), delay=00:00:00, xdelay=00:00:00, mailer=relay, pri=60079, relay=[127.0.0.1] [127.0.0.1], dsn=4.0.0, stat=Deferred: Connection refused by [127.0.0.1]
Mar 31 14:46:32 web-server01 sendmail[30255]: s2V6kWZt030255: from=root, size=77, class=0, nrcpts=1, msgid=<03310646.s2V6kWZt030255@localhost.localdomain>, relay=root@localhost
抑郁了！！！
几经波折发现RHEL5.4上的mail命令和sendmail有这千丝万缕的联系
索性卸了sendmail和mailx8.1安装新的mailx包
yum remove sendmail
安装新的mailx包
# wget /files/mailx-12.4.tar.bz2
# make
# make install UCBINSTALL=/usr/bin/install
test -d /usr/local/bin || mkdir -p /usr/local/bin
/usr/bin/install -c mailx /usr/local/bin/mailx
strip /usr/local/bin/mailx //此命令
test -d /usr/local/share/man/man1 || mkdir -p /usr/local/share/man/man1
/usr/bin/install -c -m 644 mailx.1 /usr/local/share/man/man1/mailx.1
test -d /etc || mkdir -p /etc
test -f /etc/nail.rc || \
/usr/bin/install -c -m 644 nail.rc /etc/nail.rc //这个配置文件
查看修改后的配置文件
# cat /etc/nail.rc |grep -vE "^#|^$"
set hold
set append
set ask
set crt
set dot
set keep
set emptybox
set indentprefix="> "
set quote
set sendcharsets=iso-8859-1,utf-8
set showname
set showto
set newmail=nopoll
set autocollapse
ignore received in-reply-to message-id references
ignore mime-version content-transfer-encoding
fwdretain subject date from to
set bsdcompat
set from=994414615\@ smtp=smtp.
set smtp-auth-user=994414615\@ smtp-auth-password=YOUPASSWORD smtp-auth=login
再测试
# echo "this is a test mail,hello cai\!"| /usr/local/bin/mailx -s testmail 994414615@
成功发送！！！
############################################
迷途小运维随笔
作者：john
转载请注明出处
