用PHP MAIL()函数发件550

laulzgoay

This is the mail system at host YUN86111327.localdomain.

I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.

For further assistance, please send mail to postmaster.

If you do so, please include this problem report. You can
delete your own text from the attached returned message.

                   The mail system

<278230xxxx0@qq.com>: host mx3.qq.com[184.105.20x.xxx] said: 550 DNS check failed
    [MSgZkG9YP2j4RvEKuxxxxxxXS75oshTo9ZTMOHXnWM4D4XwVZyWKFO0= IP:
    104.255.xxx.xxx]. (in reply to end of DATA command)


有MJJ知道为什么吗

LiuJia

难道要求发信域有spf？或rDNS？

laulzgoay

求大神解答

laulzgoay

没有大佬会吗？精神失常中

三思而后折腾

LiuJia 发表于 2018-6-16 20:04
难道要求发信域有spf？或rDNS？

发信要有 spf 不是正常要求吗，

为防止垃圾邮件 rdns也将会成为标准要求，

LiuJia

三思而后折腾 发表于 2018-6-16 20:43
发信要有 spf 不是正常要求吗，

为防止垃圾邮件 rdns也将会成为标准要求， ...

嗯，看谷歌那的邮局管理建议中，要有spf，还有 DKIM。