>>See RFC 8058 on doing one-click unsubs in a way unlikely to be mistriggered.
Its a good idea, but don't count on all MUAs implementing this function, so
best here is to have both, if request arrives from the RFC 8058 header, treat
it as secure enough to warrant one-click, but if it arrives t
It appears that Grant Taylor via mailop said:
>On 6/28/23 11:07 AM, Chris Truitt via mailop wrote:
>> The Mimecast spam checking appears to be clicking every link. This has
>> inadvertently caused an uptick in Unsubscribes.
>
>Aside: Isn't this why the unsubscribe links are encouraged to use /
No, but a 2-step procedure is recommended. Click the link, then push a button
to confirm.
Some actors also require a checkbox, to really make sure link-following bots
don't confirm. Or even a simple captcha.
Don’t neccessarly need to use POST, but scanning systems scan the links to
ensure no mal
On 6/28/23 11:07 AM, Chris Truitt via mailop wrote:
The Mimecast spam checking appears to be clicking every link. This has
inadvertently caused an uptick in Unsubscribes.
Aside: Isn't this why the unsubscribe links are encouraged to use /
require a POST so that simple GETs don't accidentally
It appears that Gellner, Oliver via mailop said:
>> That occasionally happens, but since I whitelist any /24 that has
>> successfully retried, it doesn't happen very much.
>
>I see, this looks like a better approach. Unfortunately many greylisting
>implementations only whitelist senders for a fe
Replied offline.
From: mailop on behalf of Chris Truitt via mailop
Date: Wednesday, June 28, 2023 at 12:11 PM
To: Dave Smith via mailop
Subject: [mailop] Mimecast Adimin Probation Block - 74.203.49.59
Hi Dave,
We're getting a Mimecast Admin Probation Block.
The Mimecast spam checking appears
Hi Dave,
We're getting a Mimecast Admin Probation Block.
The Mimecast spam checking appears to be clicking every link. This has
inadvertently caused an uptick in Unsubscribes.
smtp;550 Administrative prohibition - envelope blocked -
https://community.mimecast.com/docs/DOC-1369#550 [2TjxbsUyNyGk
> On 24.06.2023 at 19:38 John Levine via mailop wrote:
> According to Gellner, Oliver via mailop :
>>
>>It matters if the greylisting takes place before or after RBL / domain
>>reputation checks. If the greylisting comes first, I could imagine that the
>>connections from most of those bots would
