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Post email sent from dynamic IP address rejected
di stefano tufillaro su martedì 20 giugno 2017

Good Morning,
I have the domain ****.eu with your organization.
My ip address is dynamic .
I use web server, internal mail server 'natted' and firewalled as well.
I receive email from outsite in the mailbox named @****.eu.

When i send email from outside or from inside i receive (this an example) rejected my message [.....] error:
DY-001 (SNT004-MC5F22) Unfortunately, messages from xx.xx.xx.xx weren't sent. Please contact your Internet service provider. You can tell them that Hotmail does not relay dynamically-assigned IP ranges. You can also refer your provider to

I verified that the domain name is not in a blocked list in

Some suggestions ?

Thanks in advance

Stefano Tufillaro

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Post Re: email sent from dynamic IP address rejected
di timothytw su mercoledì 21 giugno 2017

It seems that Hotmail rejects emails sent from dynamic IP addresses. You can use the SMTP outbound relay service to send emails through our dedicated SMTP relay server to avoid this problem.

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giovedì 13 giugno 2024 07:46