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Server error: '550 5.7.1 Relaying denied. IP name possibly forged

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Level 1a

I am having trouble sending emails from my MS Outlook

This is the message I get:

Server error: '550 5.7.1 Relaying denied. IP name possibly forged

 

Any suggestions as to how to fix the problem, please?

 

Thanks

1 REPLY 1
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Moderator

Hi @adslkqdf ,

 

Welcome to the community!

 

We did an article that you may find helpful, please see link below.

Cannot Send Email Rejected by the Server/Banned from using SMTP .

Let us know how it will go, cheers!