Therefore, MTA software is responsible for querying the MX records. The MTA software establishes the SMTP (Simple Mail Transfer Protocol) connection with those mail servers, as per their priority. When the user sends an email, the MTA (Message Transfer Agent) software sends a query for the MX records if the MX record is present. What is the process of querying an MX record?
If you put them incorrectly, you will not receive the email. Therefore, you must set the MX records of your domain appropriately. If it fails to send an email, then it will move towards mail2 for sending an email. The server will first try mail1 to send the email. Here the number represents the priority hierarchy a lower number will be preferred first. These records are necessary to set up, especially when you using the custom email address for your domain. Moreover, if your MX records point to the wrong location, you will be unable to receive the email. If no MX record is found, the email will fail to send. The email servers check the MX record of your domain before sending the email. The MX records tell which mail server will receive the incoming emails for that specific domain and where your domain's emails should be routed as per the Simple Mail Transfer Protocol (SMTP). MX records stand for Mail Exchange records and are set in the DNS for sending the email to your email address. The database looks up its DNS records, gets its IP address, and sends it to the requesting client. In the programming language, the DNS records are the "mapping files." Whenever you enter any website in your browser bar, the request is sent to the DNS database. In simple words, the record means any data in a proper and structured form. MX records are added in the DNS of the domain to set up the internal and the external email servers for that specific domain, especially if you want to use the custom email address for that particular domain. Instantly check the MX records of any domain.
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