20 days ago
Blacklisted email address
Hi I am having trouble sending an invoice to a client. Can I get the email address unblocked please? The error message is: Diagnostic-Code: smtp; 550 Rejected by header based manually Blocked S...
Hi Guvna2323,
The error you're experiencing isn't something that can be resolved by your IT personnel. It is related to your recipient's email services, so they need to check it on their end. As you mentioned, this issue only occurs with one client.
Regards,
Genreve
Hi Genreve
I have just finished a call with one of your team to sort out another issue and it seems it was a blacklisted email address on your end!
The problem has been rectified
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