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A comment on Adding a phone number to your Google account can make it less secure. Parent comment

Re:Adding a phone number to your Google account can make it ... by twr on Thursday October 20, 2016 @11:25PM (#12757959)
dnsbl.info reports that 69.43.165.11, MX for mail.rsync.net, is blacklisted by ips.backscatterer.org:

http://www.backscatterer.org/?ip=69.43.165.11

I suggest fixing your SMTP server configuration [1][2] and maybe listing your IP on dnswl.org. (edit: I see you did the latter.)

[1]: http://www.backscatterer.org/index.php?target=bounces

[2]: https://web.archive.org/web/20140215064312/http://spamlinks....

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Re:Adding a phone number to your Google account can make it ... by rsync on Friday October 21, 2016 @01:39PM (#12762656)
That's the rsync.net mailserver and that's interesting, thank you.

However I was speaking of my own, personal mailserver, which is not listed.

Also - do we really think "big email" (like google) are using either of these (blacklist or whitelist) services ?

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Re:Adding a phone number to your Google account can make it ... by cmdrfred on Friday October 21, 2016 @02:31PM (#12763217)
I can't tell you what goes on behind the scenes at Google, but I have resolved email issues to gmail by getting removed from blacklists.
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