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Bug #526

closed

blacklisted at hotmail.com / outlook.com

Added by Christian Lohmaier over 9 years ago. Updated almost 9 years ago.

Status:
Closed
Priority:
Urgent
Category:
Mail system
Target version:
-
Start date:
Due date:
% Done:

0%

Tags:

Description

relay=mx2.hotmail.com[65.55.37.120]:25, delay=1.5, delays=0.04/0.01/1.3/0.16, dsn=5.0.0, status=bounced (host mx2.hotmail.com[65.55.37.120] said: 550 SC-001 (COL004-MC4F1) Unfortunately, messages from 5.9.148.85 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 http://mail.live.com/mail/troubleshooting.aspx#errors. (in reply to MAIL FROM command))

Also the bounce-probes are affected, so everyone using a hotmail address is unsubscribed (if there was some activity on the list)
Might be related to DMARC (but not directly, as bounce ones would not violate dmarc) - maybe we got a bad scoring somewhere since all our mailinglist mails from yahoo/other dmarc-using-domains make dmarc for those messages invalid...


Related issues

Related to Infrastructure - Bug #1068: Bugzilla: Gmail and Hotmail filter bug mail as spamClosedAlexander Werner

Actions
Actions #1

Updated by Alexander Werner over 9 years ago

  • Status changed from New to In Progress
Actions #2

Updated by Alexander Werner over 9 years ago

For triaging: I am also unable to send mail to hotmail.com users from my private servers recently.

Actions #3

Updated by Florian Effenberger over 9 years ago

  • Due date changed from 2014-07-06 to 2014-08-10
Actions #4

Updated by Florian Effenberger over 9 years ago

  • Status changed from In Progress to Closed

Closing
No further complaints, and netblock is about to change anyways - see no urgency here

Actions #5

Updated by Christian Lohmaier almost 9 years ago

  • Status changed from Closed to New

we're again on their blacklist...

18FA96227F: to=<removedbycloph>, relay=mx3.hotmail.com[65.55.33.135]:25, delay=1.5, delays=0.03/0/1.3/0.16, dsn=5.0.0, status=bounced (host mx3.hotmail.com[65.55.33.135] said: 550 SC-001 (COL004-MC6F37) Unfortunately, messages from 5.9.148.85 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 http://mail.live.com/mail/troubleshooting.aspx#errors. (in reply to MAIL FROM command))
Actions #6

Updated by Florian Effenberger almost 9 years ago

No idea wrt. Hotmail directly, but in general I'd check via some Multi
RBL checks (Google for it) if we're blacklisted somewhere else

If not, then you or Alex should poke them (they should have a form
somewhere) on the topic, telling we run mailing lists with double opt-in
and everyone on the list explicitly confirmed their subscription, and
ask for a sample of the mail they refer to

That usually should help in getting unblacklisted

Actions #7

Updated by Florian Effenberger almost 9 years ago

  • Related to Bug #1068: Bugzilla: Gmail and Hotmail filter bug mail as spam added
Actions #8

Updated by Florian Effenberger almost 9 years ago

  • Status changed from New to In Progress

Oh, what irony - the security code for my outlook.com account was classified by Google Mail as spam :D

http://multirbl.valli.org/lookup/5.9.148.85.html shows no issues
Neither does http://www.anti-abuse.org/multi-rbl-check-results/?host=5.9.148.85
amavisd-testkeys shows proper key setup

Filled in https://support.microsoft.com/en-us/getsupport?oaspworkflow=start_1.0.0.0&wfname=capsub&productkey=edfsmsbl3&ccsid=635654107245503756

They claim:

Your request has been submitted.
Please ensure that you can receive e-mail messages from @css.one.microsoft.com. Check your Junk mail and Spam filters if you do not receive a reply.
A support representative will respond to your request within 24 hours by sending email to postmaster@documentfoundation.org.

Actions #9

Updated by Florian Effenberger almost 9 years ago

In addition, the listing at https://www.dnswl.org/?page_id=72 is correct

Actions #10

Updated by Florian Effenberger almost 9 years ago

  • Due date deleted (2014-08-10)
Actions #12

Updated by Florian Effenberger almost 9 years ago

  • Subject changed from mail-blocklists makes all mails to hotmail bounce / all hotmail users unsubscribed to blacklisted at hotmail.com / outlook.com
Actions #13

Updated by Florian Effenberger almost 9 years ago

Conditionally mitigated
5.9.148.85
Our investigation has determined that the above IP(s) qualify for conditional mitigation. These IP(s) have been unblocked, but may be subject to low daily email limits until they have established a good reputation.

Let's keep an eye on this before closing

Actions #14

Updated by Florian Effenberger almost 9 years ago

  • Status changed from In Progress to Closed

Still seems to work

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