Unable to send emails in MS outlook

[srlu]

Hi, I'm unable to send emails from my MS outlook. All emails i try to send has message of 'Server error: '550 5.7.1 <email>... Relaying denied. IP name lookup failed [1.145.87.148]'.

Can someone help?

Thanks

[Anonymous]

Hi @srlu,

Welcome to community!

Thanks for raising this to us, here are some articles that you may find helpful, this will guide you a basic troubleshooting about the issue affecting the email.

Please see the link below.

• How to Enable the SMTP Authentication
• Cannot Send Email Rejected by the Server/Banned from using SMTP

Let us know how it will go.

Cheers!

Hi, I'm unable to send emails from my MS outlook. All emails i try to send has message of 'Server error: '550 5.7.1 <email>... Relaying denied. IP name lookup failed [1.145.87.148]'.

Can someone help?

Thanks

[david64]

Hi @srlu . If this is still happening, login to your router and check if the router's public ip address is the value shown in the error message. If so, restart your router and check email sending.