Hi,
On 1/16/22 12:52 PM, Graeme Fowler via mailop wrote:
Howdy
On 16 Jan 2022, at 15:09, John Gateley via mailop <mailop@mailop.org> wrote:
It has been several days without response.
I have tried several times, the most recent were yesterday and day before
yesterday morning
(24 and 48 hours, roughly), but NONE of my forwards are getting a response.
I think you may have misunderstood the semantics of Michael’s reply. A cursory
search of this mailing list’s archive will show you that Linode are like
Marmite - loved or hated, in terms of reputation, in equal measure. They have a
decent response team but the size of the operation and the automation/APIs/web
UI they offer means it is almost trivial to turn up an IP, burn it with
outbound spam, get whacked, turn up another one and so on.
Since late 2019, Linode has blocked outbound SMTP for ALL customers by
default, until a support request has been approved to grant removal of
the filters for the requesting customer. Support must follow a procedure
to verify certain criteria before granting SMTP access, and such
requests are tracked. As of this past week, additional steps are in
progress to better handle the vetting, and better catch customers who
might be gaming the system.
Note, Linode has in excess of a million customers, each with one or more
VM (Linode), and corresponding IPs. There are also resellers who use
Linode resources to host their customers. In at least one recent
incident, abuse was tracked down to a reseller with a single abusive
customer burning through IPs with SMTP access, so the reseller has been
put on notice and has committed to default blocking, and a higher level
of vetting before granting SMTP access.
I am a Linode employee, though not in the department that handles this
kind of issue.
For some recipients’ admins, Linode are “block on sight”.
It may be that MS have finally had enough, and as has been mentioned many times
- their network, their rules (which also applies to you, and Linode, and
everyone on this list).
We are talking about a massive amount of IP space, and lots of
collateral damage for those who do block large chunks of it. I've been
impressed with how receptive the powers that be have been to feedback
about recent issues that I've passed along and from the tickets from
customers. I am optimistic about the situation, for what it's worth.
Mark
--
Mark G Thomas <m...@misty.com>, KC3DRE
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