Re: [mailop] [E] Re: Some Days I think that Gmail isn't even trying to stop outbound spam..

2021-02-11 Thread Dave Warren via mailop
On 2021-02-09 14:47, Chris via mailop wrote: On 2021-02-08 21:09, Dave Warren via mailop wrote: \ You could always turn on + addressing on M365... https://docs.microsoft.com/en-us/exchange/recipients-in-exchange-online/plus-addressing-in-exchange-online Admittedly it is fairly new, and opt-

Re: [mailop] How important is an ipv6 ptr record?

2021-02-11 Thread Dave Warren via mailop
On 2021-02-10 12:08, Andrew C Aitchison via mailop wrote: On Wed, 10 Feb 2021, Dave Crocker via mailop wrote: The much larger address space makes it too easy for a bad actor to jump around and, therefore, not develop a bad reputation associated with the address.  So non-history features are ma

Re: [mailop] Sendgrid is giving others anti-abuse/security advice? Wow!

2021-02-11 Thread Noel Butler via mailop
On 12/02/2021 03:40, Rob McEwen via mailop wrote: These questions! WOW! IS THIS FOR REAL? Don't get me wrong, I like Len Shneyder and I think he's a good person TRYING to do the right thing - but - considering what is coming FROM SendGrid in recent years, is this the right time to be giving OT

Re: [mailop] Sendgrid is giving others anti-abuse/security advice? Wow!

2021-02-11 Thread Al Iverson via mailop
How is this post related to a current specific operational concern? I'm not seeing how it's on topic. On Thu, Feb 11, 2021 at 11:52 AM Rob McEwen via mailop wrote: > > These questions! WOW! IS THIS FOR REAL? Don't get me wrong, I like Len > Shneyder and I think he's a good person TRYING to do th

Re: [mailop] How important is an ipv6 ptr record?

2021-02-11 Thread Ken O'Driscoll via mailop
[Added mailop as CC.] On Thursday 11 February 2021 16:34, Dave Crocker wrote: > A basic issue I've tried to raise but finally gave up on is that email > relaying means that a message can start in a v4 environment and then > transit a v6 one. The Originator has no control over that. > > So differ

Re: [mailop] How important is an ipv6 ptr record?

2021-02-11 Thread John Levine via mailop
In article <642c356c-25bb-4db8-bc86-bee5c3dd9...@cisco.com> you write: >-=-=-=-=-=- >-=-=-=-=-=- > >Do people care about them if there is an appropriate SPF record in place? Yes. It's not that IPv6 is low quality, it's that there isn't a lot of v6 senders running MTAs that haven't been updated si

[mailop] Sendgrid is giving others anti-abuse/security advice? Wow!

2021-02-11 Thread Rob McEwen via mailop
These questions! WOW! IS THIS FOR REAL? Don't get me wrong, I like Len Shneyder and I think he's a good person TRYING to do the right thing - but - considering what is coming FROM SendGrid in recent years, is this the right time to be giving OTHERS anti-abuse/security advice? Just... wow! I thi

Re: [mailop] [EXTERNAL] Re: How important is an ipv6 ptr record?

2021-02-11 Thread Brotman, Alex via mailop
I'd say IPv6 streams are generally better. The legitimate senders using IPv6 seem to care more, and have things properly setup as it relates to authentication. There are a few outliers obviously. Is there abuse on IPv6? Definitely. At the moment, you mostly know who your large volume IPv6 s