Hi there and thank you all for your comments.
Certainly, you're all right on your opinions about OVH. In fact, we've
been considering moving to a different platform some times but, until
now, we hadn't had real motives to do so. We've had decent support and
never had, in the past, big issues with their service. We'll see now how
we solve this, because...
...the most stupid situation arises here now: as I metioned earlier
today we're having problems delivering to Hotmail. I just realized a
couple of minutes ago this is only happening when using my server
assigned's failover IP. I just switched to the default IP: changed
postfix outbound IP and MX DNS entry for my testing domain (we use SPF,
DKIM and DMARC) and messages get delivered to the Hotmail's INBOX
directly, not going to the SPAM folder! I hadn't that IP added to the
SNDS cause we just use the failover IP. Microsoft likes that IP. Time to
complain to OVH and ask for a different failover IP.
Thanks for your recommendation on Vultr. Any others you can also
recommend are also appreciated.
And, of course, I want to thank you all again for your help and quick
response
Best wishes!!!
Ignacio
El 25/2/21 a las 16:43, Michael Peddemors via mailop escribió:
+1, not only are they one of the most reported IP Spaces, but their
abuse teams are slow to respond, and they don't assist customers with
reputation problems. AS well, they don't keep up their SWIP/rwhois
very well. And when a snowshoe spammer lights up, it is usually very
high volume that they get out.
Just sorry for the legitimate customers using them, as they have a lot
of bad neighbours. I think this is something that the Canadian CASL
teams should look at.
Also, speaking of whois, pet peeve that some of the whois databases
never seem to be updated/cleaned up.
whois 51.79.55.200
Still thinks RIPE is responsible..
whois 51.79.55.200 -h whois.arin.net
But it's actually now in ARIN hands..
On 2021-02-25 12:58 a.m., Rob Kendrick via mailop wrote:
On Thu, Feb 25, 2021 at 09:41:36AM +0100, Ignacio García via mailop
wrote:
From your experience, how long may it take to MS to allow
communications from those IPs? Is there anything else we can do to
to help solve this situation?
Don't use OVH. They have a terrible reputation and are widely blocked
at the AS level. One week last year, 15% of the spam we refused was
from OVH. Banning them wholesale is an easy decision for many
administrators. It will take OVH years to fix this reputation problem,
and while they do, you will have deliverability problems.
I know OVH's not a favorite among pros, but for me, their dedicated
servers work well and aren't very expensive. Can anybody recommend
a somewhat similar solution with a better IP segments reputation?
Their cheapness is partially the problem. Laxness is another part.
Perhaps you could have a machine or three at a respectable provider and
push all your outgoing mail through them, keeping the bulk at OVH?
B.
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