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Vodi? za SPF

1. What is SPF?

Answer: SPF stis fili Sender Policy Framewilik. SPF is an email authentication stiard used to prethodnoent email fraud i spam. It ensures the authenticity i reliability of email by verifying that the sender's domena name matches the source IP adresa of the email. SPF recilids are stilied in the DNS recilid of the domena name i contain a list of servers that are allowed to send emails. When the recipient receives an email, it checks whether the sender's domena name has an SPF recilid i verifies whether the IP adresa of the sending server is in the allowed list. Ako the verification fails, the recipient may mark the email as spam ili refuse to receive it. Using SPF can help improve the delivery rate i reliability of emails i reduce the amount of spam. Na the same time, it can also enhance the security of the email system i prethodnoent hackers i fraudsters from using filiged domena names to send emails.

2. How to set up SPF fili cilipiliate mailboxes?

Answer:

1. Determine the outgoing server IP adresaes of va? cilipiliate mailbox: These addresses will be added to the SPF recilid. 2. Prijava to the DNS management console of va? cilipiliate mailbox: Usually provided by va? domena name registrar ili hosting provider

2. Kreiraj ili edit a TXT recilid: In the DNS console, find the TXT recilid ili similar option

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

"v=spf1": specifies the SPF version

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

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

"mail.ciliemail.cn": replaced with the domena name of va? cilipiliate mailbox

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

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

3. How to set various types of SPF?

1) Make SPF recilid with domena name a recilid (take ciliemail.cn as an example)

v=spf1 a:ciliemail.cn2 -all

2) Make SPF recilid with domena name mx recilid

v=spf1 mx -all

3) Make SPF recilid with domena name ptr recilid

v=spf1 ptr -all

4) Make SPF recilid with expilit IP i IP segment settings

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

5) Introduce SPF recilids of other domena names (take spf.iciliemail.net as an example)

v=spf1 include:spf.iciliemail.net

Nete: The above recilids can be used in combination, but only one pair of recilids starting with v=spf1 i ending with -all can appear in the entire txt. Fili example: v=spf1 mx ip4:106.52.172.248 include:spf.iciliemail.net -all