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wHAT ARE MX or A records?

  • 2 replies
  • 1 has this problem
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  • Last reply by McLachlan

McLachlan
McLachlan

When an email is rejected as unreceivable, and the reason says there are no MX or A records for that address, what does that mean?

When an email is rejected as unreceivable, and the reason says there are no MX or A records for that address, what does that mean?

Chosen solution

When you send email to a domain, such as mozilla.org, your email service will look up the domain to find out what server is supposed to handle the message. These are MX records.

If your mail service is telling you that no MX records exist, then some possibilities are:

  • You made a typo in the email address
  • A spammer listed you as the sender of some spam to a nonexistent account
  • The recipient's account is in bad standing with its email provider

A records, also known as Address records, associate domains such as mozilla.org with web servers and other servers. If the MX records point to a server that doesn't have an A record, then that would be a second possible reason the mail wouldn't go through.

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jscher2000 - Support Volunteer
jscher2000 - Support Volunteer
  • Top 10 Contributor

Chosen Solution

When you send email to a domain, such as mozilla.org, your email service will look up the domain to find out what server is supposed to handle the message. These are MX records.

If your mail service is telling you that no MX records exist, then some possibilities are:

  • You made a typo in the email address
  • A spammer listed you as the sender of some spam to a nonexistent account
  • The recipient's account is in bad standing with its email provider

A records, also known as Address records, associate domains such as mozilla.org with web servers and other servers. If the MX records point to a server that doesn't have an A record, then that would be a second possible reason the mail wouldn't go through.

McLachlan
McLachlan Question owner

I appreciate both the reply and its promptness. Thanks for caring! Bert