linux 下php mail或sendmail发送邮件慢的解决办法
mail慢并超时是由于sendmail慢引起的,但sendmail慢又如何解决呢？第一步：当然是查日志:
vim /var/log/maillog
Jul5 23:26:20 localhost sendmail: My unqualified host name (localhost) unknown; sleeping for retry
Jul5 23:27:20 localhost sendmail: unable to qualify my own domain name (localhost) -- using short name
Jul5 23:27:20 localhost sendmail: r65FRKmm001206: from=nobody,
size=187,>
Jul5 23:27:20 localhost sendmail: r65FRKBa001207:
from=,>
Jul5 23:27:20 localhost sendmail: r65FRKmm001206:
to=aaa@gmail.com, ctladdr=nobody (99/99), delay=00:00:00,
xdelay=00:00:00, mailer=relay, pri=30187,> Jul5 23:27:22 localhost sendmail: STARTTLS=client,
relay=gmail-smtp-in.l.google.com., version=TLSv1/SSLv3, verify=FAIL,
cipher=RC4-SHA, bits=128/128
Jul5 23:27:25 localhost sendmail: r65FRKBa001207:
to=, ctladdr= (99/99),
delay=00:00:05, xdelay=00:00:05, mailer=esmtp, pri=120398,
relay=gmail-smtp-in.l.google.com. , dsn=2.0.0, stat=Sent
(OK 1373038045 qn3si5112247pbc.62 - gsmtp)
Jul5 23:30:01 localhost sendmail: My unqualified host name (localhost) unknown; sleeping for retry
第二步：在hosts表添加域名
#hostname
vim /etc/hosts
如下添加
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6 你的域名
我的实例：
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6 itsmtest.vobi××.cn itsm-demo
root@itsm-demo:/var/www/html/itop.new# service apache2 restart
root@itsm-demo:/var/www/html/itop.new# echo $?
0
我的实例2：没有域名，纯ip地址
root@itsm:/var/www/html# cat /etc/hosts
127.0.0.1 localhost
192.168.200.65 itsm
# The following lines are desirable for IPv6 capable hosts
::1 localhost ip6-localhost ip6-loopback itsm 192.168.200.65
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
如果上面办法还是解决不了
检查下php.ini设置是否正确
cat /etc/php.ini | grep sendmail_path
正确的结果应该类似这样
sendmail_path = sendmail -t -i
检查下sendmail是否安装
which sendmail
正常的结果应该类似这样
/usr/sbin/sendmail
如果上面的路径没有找到sendmail
检查下是否安装了包
yum list installed | grep sendmail
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