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#5.5.0 smtp;550-Verification failed

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by hojones

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I can email to everyone else in the world except one company. Everytime I try to email them i get back the following msg. #5.5.0 smtp;550-Verification failed. Please help me. I'm no exchange guru so I am in need of a resolution fast.

Thanks,

4 replies

by rdalge

They may have you blacklisted as spam. Maybe you can contact their admin and have they whitelist your domain name if they know you.

by rogertranchez

Hello,

We have exactly the same problem in our company; we've Exchange and we're able to send to everybody EXCEPT some emails in POLAND. wwwwwHYYYY ? Is there an enormous and weird polish firewall playing around ?
I have contacted the company where we cannot send emails and they've put our domain in the whitelist but the problem persists 8-/

by tobif

Just click on Ask a question, give all relevant details. Then keep your fingers crossed that someone will be able to help.

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