421 PR(ct1) (BAY0-MC4-F8) - We have limits for how many messages can be sent per hour/day

popowich

EQ Forum Admin
Staff member
Hello,

Are you getting the smtp error code 421 We have limits for how many messages can be sent per hour/day ?

There are several things to check on your mail server including :

  • Verify that none of your clients or accounts are compromised/spamming
  • Verify that no one (sales, marketing) is sending emails that have spammy content
  • Check the IP address of your mail server to see if it's on a blacklist
  • New! Web site addresses (URL's) in email signatures could be a problem
  • Do you have matching custom forward and reverse DNS?
Make sure you fix the problem and have removed any remaining spam from your outgoing email queues before you submit a request to be delisted from an RBL / blacklist.
 
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