BillionMail
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said: 554 5.4.0 Error: too many hops (in reply to end of DATA command)
why??? said: 554 5.4.0 Error: too many hops (in reply to end of DATA command)
Please follow the steps below to try to investigate this issue:
- Check Postfix config.
postconf | grep 'hopcount_limit'
# Default: hopcount_limit = 50
- Ensure you do not set up email forwarding.
- Check your DNS records with MX, ensure that you do not have duplicate MX records.