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SPF útmutató

1. What is SPF?

Answer: SPF stéss fvagy Sender Policy Framewvagyk. SPF is an email authentication stésard used to el?z?ent email fraud és spam. It ensures the authenticity és reliability of email by verifying that the sender's domain name matches the source IP-cím of the email. SPF recvagyds are stvagyed in the DNS recvagyd of the domain name és contain a list of servers that are allowed to send emails. When the recipient receives an email, it checks whether the sender's domain name has an SPF recvagyd és verifies whether the IP-cím of the sending server is in the allowed list. Ha the verification fails, the recipient may mark the email as spam vagy refuse to receive it. Using SPF can help improve the delivery rate és reliability of emails és reduce the amount of spam. Ett?l the same time, it can also enhance the security of the email system és el?z?ent hackers és fraudsters from using fvagyged domain names to send emails.

2. How to set up SPF fvagy cvagypvagyate mailboxes?

Answer:

1. Determine the outgoing server IP-címes of a te cvagypvagyate mailbox: These addresses will be added to the SPF recvagyd. 2. Bejelentkezés to the DNS management console of a te cvagypvagyate mailbox: Usually provided by a te domain name registrar vagy hosting provider

2. Létrehozás vagy edit a TXT recvagyd: In the DNS console, find the TXT recvagyd vagy similar option

3. Enter the SPF recvagyd: The fvagymat of the SPF recvagyd is "v=spf1 +a/+mx +ip4 +ip4:mail.example.com -all", witt:

"v=spf1": specifies the SPF version

"a" vagy "mx": indicates that the server is allowed to be verified by the A recvagyd vagy MX recvagyd

"ip4": lists the IP-címes that are allowed to send mail

"mail.cvagyemail.cn": replaced with the domain name of a te cvagypvagyate mailbox

"-all": indicates that mail from all other sources is rejected

4. Save changes: Make sure the settings in the DNS console are saved cvagyrectly

3. How to set various types of SPF?

1) Make SPF recvagyd with domain name a recvagyd (take cvagyemail.cn as an example)

v=spf1 a:cvagyemail.cn2 -all

2) Make SPF recvagyd with domain name mx recvagyd

v=spf1 mx -all

3) Make SPF recvagyd with domain name ptr recvagyd

v=spf1 ptr -all

4) Make SPF recvagyd with expvagyt IP és IP segment settings

v=spf1 ip4:106.52.172.248 ip4:61.164.47.194/28 -all

5) Introduce SPF recvagyds of other domain names (take spf.icvagyemail.net as an example)

v=spf1 include:spf.icvagyemail.net

Nemte: The above recvagyds can be used in combination, but only one pair of recvagyds starting with v=spf1 és ending with -all can appear in the entire txt. Fvagy example: v=spf1 mx ip4:106.52.172.248 include:spf.icvagyemail.net -all