问题描述
Mailgun告诉我为 mg.mydomain.com 设置一个 TXT 记录，值为 v = spf1 ... 加一个 CNAME 记录 email.mg.mydomain.com 价值 mailgun.org 。
Mailgun is telling me to set up a TXT record for mg.mydomain.com with a value of v=spf1 ... plus a CNAME record for email.mg.mydomain.com with value mailgun.org.
我这样做，邮件验证我的域名问题。问题是当我发送电子邮件，某些接收邮件服务器拒绝我的电子邮件消息发件人地址被拒绝：域未找到。我很确定这是因为mg.mydomain.com不存在 - 我没有一个 CNAME 。但是，我无法创建一个 CNAME ，因为它已经用于 TXT 记录。
I did that, and mailgun verified my domain no problem. The issue is when I send emails, certain receiving mail servers are rejecting my emails with message "Sender address rejected: Domain not found". I'm pretty sure this is because "mg.mydomain.com" doesn't exist -- I don't have a CNAME for it. However, I can't create a CNAME for it because it's already used for the TXT record.
所以现在我不知道该怎么办我可以在不同的 TXT 记录中将这个 v = spf1 释放 mg。 CNAME ，以便发件人验证可以在这些挑选服务器上工作？
So now I don't know what to do. Can I put this v=spf1 thing in a different TXT record so that I can free up the mg. CNAME, so that sender-verification will work on these picky servers?
推荐答案
似乎缺少的成分是 mg.mydomain.com
A
mg.mydomain.com. A nnn.nnn.nnn.nnn:
如果 email.mg.mydomain.com CNAME 与 mydomain.com ， mg.mydomain.com 等在同一个DNS区域。并且有一个一个记录，其中ip指向主机名，然后设置 CNAME ， TXT 和 MX 记录应该很简单：
If email.mg.mydomain.com CNAME is in the same DNS zone as mydomain.com, mg.mydomain.com, etc. and there's an A record with the ip pointing back to the hostname then setting up the CNAME, TXT, and MX records should be straightforward:
CNAME
email.mg.mydomain.com. CNAME mailgun.org.
TXT
mydomain.com. TXT v=spf1 a include:mailgun.org ~all
（可选用于接收）
MX
mydomain.com. MX mxa.mailgun.org.
mydomain.com. MX mxb.mailgun.org.
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