DNS错误,没有找到A记录.检查一下你的域名是不是正确的做了解析记录.
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No. According to RFC 2821, if there is no MX record, then mail delivery will look for an A record instead: The lookup first attempts to locate an MX record associated with the name. If a CNAME record is found instead, the resulting name is processed as if it were the initial name. ...
Deleted DNS record keep coming back Deleted failed DC from the domain (Server 2012 R2) - Now after doing metadata and DNS cleanup, I can no longer promote a new DC to the domain Deleted SPN's keep coming back Deleting a DNS resource record in an AD integrated system Deleting msFVE-Recov...
You always need an A record point to an ip addreess and then a CNAME pointing to the A record, or another domain. Even if they don't give you and ip address they have one for you, so you can reach your domain in some way. No, it will not affect the SSL on the site. ...
Viene descritto come verificare i record di risorse del localizzatore SRV (Service Location) per un controller di dominio dopo l'installazione del servizio directory Active Directory.
That query returns NS records, but no SOA record since SOA records are provided by the domain's name server (which may or may not be online). The NS records indicate the domain name is in use. The reason for going direct is that it's usually much faster than relying on recursive quer...
If the domain has no SPF record, but does have a DMARC record, would it count as a DMARC pass? spf dmarc Share Improve this question Follow asked May 8, 2019 at 17:32 trallgorm 88577 silver badges2222 bronze badges Add a comment 1 Answer Sorted by: 4 A DMARC ...
External (use MX record)- Select this option if the mail server is hosted partially or entirely externally. Messages will be delivered based on an MX lookup. Select the option "Deliver locally if user exists" to perform a local delivery instead of external if the user exists locally. ...
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