On 24/04/2019 02:22, John Levine wrote:
But the vast majority of people who would use a system like that would
be spammers to try to get their unwanted mail delivered. That's never
going to happen.
The thing is that Microsoft have the SDNS system already.
But for small senders it's of limited use.
The '100 messages a day' threshold they have means that small senders
get zero information from it. We have multiple smarthosts which send
several thousand messages a day, but because they send <100 to Microsoft
email addresses, they're not listed.
I've had cases where their 'View IP Status' shows no problems, but some
of our IP addresses are blocked. Even the next day it shows no problems,
so if it's meant to show the previous day's status, it's still not
showing it.
Occasionally we have had IP addresses shown up as blocked on 'View IP
Status', but it shows no reason or information to help get it unblocked
- so it tells us nothing we didn't already know.
If something showed a basic reason for blocking - "too much reported
spam", "IP reputation" etc, then it would at least give a bit of help.
We've had IP addresses show as 'green' on their 'View Data' list for
days, and then suddenly be blocked, and we have no idea why (they
weren't sending spam - we log all the messages sent) and no useful way
to get them unblocked.
Outlook has no idea who you are, and they have no way to tell you from
any other mailer whose mail they're not delivering.
When you contact Microsoft about an IP address, THEY should be able to
see what some recent messages from that IP address were, and why it's
been blocked, to be able to guess if you're a probable spammer or a
legitimate sender who's been caught out, and then be helpful or not
based on that.
--
Paul Smith Computer Services
Tel: 01484 855800
Vat No: GB 685 6987 53
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