Re: [mailop] Mails to microsoft

2017-02-16 Thread G. Miliotis
On 16/2/2017 00:40, John Levine wrote: OVH used to be hopeless but after some firm whacks they have started to clean up, and their delivery while not great is not hopeless. Define "whacks"? ___ mailop mailing list mailop@mailop.org

Re: [mailop] How does Sendgrid validate customers (Swisscom Invoice Incident)?

2017-02-16 Thread Luke Martinez via mailop
If you can post some headers, I can likely tell you how this sender got onto our system and how quickly they were shut down. I am certain they didn't tell us "Hey, we are Swisscom." Luke On Thu, Feb 16, 2017 at 1:37 AM, Benoit Panizzon wrote: > Hi all > > I am

Re: [mailop] weird SPF problem with Round Robin DNS entries

2017-02-16 Thread Ken O'Driscoll
On Thu, 2017-02-16 at 11:05 +0100, Benoit Panizzon wrote: > Could it be that the check the remote site uses only looks up one IP > instead of all of them? Hi Benoit,  It's probably that or a mismatch with the reverse DNS. It's hard to know without knowing the domain name. Is there a reason that

[mailop] weird SPF problem with Round Robin DNS entries

2017-02-16 Thread Benoit Panizzon
Hello I wonder, are there any issues, if an SPF a:host entry resolved to multiple IP addresses? smtp.imp.ch has address 157.161.13.198 smtp.imp.ch has address 157.161.13.197 smtp.imp.ch has address 157.161.13.196 smtp.imp.ch has IPv6 address 2001:4060:1:1001::13:198 smtp.imp.ch has IPv6 address

[mailop] Randy Bush on the list...?

2017-02-16 Thread Michelle Sullivan
This report relates to a message you sent with the following header fields: Message-id: Date: Sat, 11 Feb 2017 12:03:15 +0100 From: Michelle Sullivan To: Randy Bush Subject: Re: change Your message has

Re: [mailop] Mails to microsoft

2017-02-16 Thread Klaus Ethgen
-BEGIN PGP SIGNED MESSAGE- Hash: SHA512 Am Mi den 15. Feb 2017 um 18:06 schrieb Al Iverson: > On Wed, Feb 15, 2017 at 11:23 AM, Klaus Ethgen wrote: > > >> If Hertzner cared they could sign up for the MS SNDS program and see a > >> list of all the IPs that were

[mailop] How does Sendgrid validate customers (Swisscom Invoice Incident)?

2017-02-16 Thread Benoit Panizzon
Hi all I am wondering how such an incident could happen. Yesterday several of our customers (and also several of our support contact email addresses) got very carefully crafted and very authentic looking fake email invoice notifications from Swisscom. The 'online invoice' link points to a file