Re: [mailop] Microsoft IPs automatically unsubscribing recipients?

2018-02-23 Thread Paul
On 23 February 2018 21:44:20 Grant Taylor via mailop wrote: This almost sounds like automated link content scanning. Probably That's a great mechanism for confirming active email addresses to spammers using tracking links... Sent with AquaMail for Android http://www.aqua-mail.com

Re: [mailop] TLS support

2018-02-23 Thread Matt Vernhout
Check out Google’s transparency report https://transparencyreport.google.com/safer-email/overview ~ Matt > On Feb 22, 2018, at 13:04, Michael Storz wrote: > > Am 2018-02-22 16:40, schrieb David Hofstee: >> Hi, >> A quick question... Does anyone have numbers on: >> - the (volume) percentage o

Re: [mailop] Microsoft IPs automatically unsubscribing recipients?

2018-02-23 Thread David Carriger
Good catch, Grant. They are GET requests. Our developers implemented the List-Unsubscribe HTTP method a long time ago and it appears that it was never updated to comply with RFC 8058. I'm still curious as to why I'm only seeing this with .edu domains hosted on Office365 and not Office365 in gene

Re: [mailop] Microsoft IPs automatically unsubscribing recipients?

2018-02-23 Thread Grant Taylor via mailop
On 02/23/2018 12:28 PM, David Carriger wrote: With the exception of Rutgers, these are all hosted on Office 365. Once the mail has delivered, I'm seeing all of the links inside the email hit within a span of time varying between 1-10 seconds. For example, here's an unsubscribe in our database f

Re: [mailop] Microsoft IPs automatically unsubscribing recipients?

2018-02-23 Thread Aaron Richton
On Fri, 23 Feb 2018, David Carriger wrote: I've just received an interesting escalation from our support team. We have a customer sending mail to recipients at the following domains: [...] With the exception of Rutgers, these are all hosted on Office 365. Once the mail has delivered, I'm seei

[mailop] Microsoft IPs automatically unsubscribing recipients?

2018-02-23 Thread David Carriger
I've just received an interesting escalation from our support team. We have a customer sending mail to recipients at the following domains: andromeda.rutgers.edu apsu.edu barry.edu bsu.edu ccsnh.edu clarion.edu cofc.edu dcccd.edu gsu.edu hofstra.edu king.edu letu.edu mail.barry.edu mansfield.edu

Re: [mailop] Email issues to outlook.com and hotmail.com this afternoon/evening

2018-02-23 Thread Frank Bulk
Our outbound queues were mostly empty and the last log entries were about 1 am CST, but we had some more between 6 and 9:15 am. Frank -Original Message- From: mailop On Behalf Of frnk...@iname.com Sent: Thursday, February 22, 2018 10:31 PM To: 'Benjamin BILLON' ; mailop@mailop.org Subje

[mailop] Email issues to outlook.com and hotmail.com this afternoon/evening

2018-02-23 Thread Alexander Burch
I've seen this too. Started earlier this week (Feb 19th). A big uptick in the number of "4.7.500 Server busy. Please try again later..." responses from Hotmail. I was assuming they were reputation related (spike in complaints and/or sending volume maybe). But they seem to be especially aggressive o