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Undeliverable emails

  • Nema odgovora
  • 0 ima ovaj problem
  • 10 views
  • Posljednji odgovor poslao david

info7764
info7764
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Having some emails bounce back with this message:

550-5.7.1 [173.203.187.105] Messages missing a valid messageId header 

  are not 550 5.7.1 accepted.

How can we fix this problem Thanks

Having some emails bounce back with this message: 550-5.7.1 [173.203.187.105] Messages missing a valid messageId header are not 550 5.7.1 accepted. How can we fix this problem Thanks

All Replies (1)

david
david
  • Top 10 Contributor
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This is an issue between the two mail servers. This URL may give some insight: https://www.hostwinds.com/tutorials/550-5-7-1-error-when-sending-email