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pramod1Flag for United States of America

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exchange

my organization is unable to send email to @pharmetics.com. all other external mail are going through.

only this external user is affected. error gives: 550 requested action not taken: mailbox unavailable

do I need to check something in my SPF record.
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Kundan Gupta
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Hi Pramod,

You need to contact pharmetics.com exchange team to check the receive settings.
Their firewall may be blocking the emails from your domain.

Regards
Kundan
Hi,

that error means that your server has managed to reach pharmetics server, but it did not find that specific user.
Maybe that user has been deleted/ disabled/ something with it? Can you send to any other user from that pharmetics domain?

Your SPF record does not have anything to do with it.

Regards,
Ivan.
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ASKER

that user exists and he has active mailbox, in fact email to any user gives same error.

the email to any user in that organization goes through fine from Hotmail or any other personal account

and he says he has been receiving emails from all other external organization.
Hi Pramod,

Please tell them to allow your domain into their firewall.
:)
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Andy M
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ASKER

what should I check in spf records
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ASKER

I checked spf of my domain in mxtoolbox.com what do I need to look