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PostPosted: Wed Jan 27, 2016 1:00 pm 

Joined: Wed Jan 27, 2016 11:44 am
Posts: 1
Is the Linode address space on a black list somewhere?

My Linode host is configured as a mail server with iRedMail. I am blocked sending to Microsoft accounts (i.e. Hotmail, Outlook).

For Hotmail I get the following:
Jan 27 12:47:09 mail postfix/smtp[4553]: 22C671E47D: to=<>,[]:25], delay=0.44, delays=0.01/0.03/0.37/0.04, dsn=5.0.0, status=bounced (host[] said: 550 SC-001 (SNT004-MC2F7) Unfortunately, messages from weren't sent. Please contact your Internet service provider since part of their network is on our block list. You can also refer your provider to (in reply to MAIL FROM command)),
The error they reference: 550 SC-001, states:

"Mail rejected by for policy reasons. Reasons for rejection may be related to content with spam-like characteristics or IP/domain reputation. If you are not an email/network admin please contact your Email/Internet Service Provider for help"

The mail is not "spam-like" so it must be the reputation of the IP/domain.

For Outlook I get:
Jan 27 12:47:51 mail postfix/smtp[4553]: D81AF1E47D: to=<>,[]:25], delay=6.3, delays=0.01/0/0.62/5.6, dsn=5.7.1, status=bounced (host[] said: 550 5.7.1 Service unavailable; Client host [] blocked using FBLW15; To request removal from this list please forward this message to (in reply to RCPT TO command))
I've requested delisting but have heard nothing back.

Any ideas?

PostPosted: Fri Jan 29, 2016 12:43 am 
Junior Member

Joined: Wed Apr 15, 2015 4:25 am
Posts: 26
Please refer to the thread below for learning about mail ejection by Microsoft Outlook - ... ed9a0?db=5

Linux VPS Hosting USA

PostPosted: Wed Apr 11, 2018 7:22 am 

Joined: Wed Apr 11, 2018 7:10 am
Posts: 1
As I remember correctly, I need to add a home address to the whitelist,

this problem was with me when registering the first account for Outlook. Since then, I had to use the last updates.

And following the advice of experienced users, I had carried out several times import mail to outlook source.

The information I received from their technical support of such service worked correctly, even more, many others use eml as the primary format or allowing export for Windows if they want to switch from account to use the Outlook without data fail.

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