I just saw a chart which shows a huge spike in "Service not available - access 
denied” bounces at another sender. It started Feb 10 around 17:30 GMT+1. So it 
may be a problem on the side of Telecom Italia, or they deliberately turned 
down the bulk knob.

Maarten Oelering
Postmastery

> On 15 Feb 2017, at 10:02, Lindani Tshabangu via mailop <mailop@mailop.org> 
> wrote:
> 
> I have not heard back from a human there, but I tried a contact we had with 
> their associated domain @it.telecomitalia.it <http://it.telecomitalia.it/>. 
> He, unfortunately  has left and said he had forwarded the message to "other 
> people"
> 
> Kind regards
> ____________________
> Lindani Tshabangu
> Deliverability  EMEA
> Groupon International Ltd.
> Connaught House |1 Burlington Rd | Dublin 4, Ireland
> 
> 
> 
> On Tue, Feb 14, 2017 at 9:35 PM, Udeme Ukutt <uukutt...@gmail.com 
> <mailto:uukutt...@gmail.com>> wrote:
> Has anyone *actually* heard from a human there? I've tried abuse@ & 
> postmaster@ in the past - with no luck unfortunately.
> 
> - Udeme 
> 
> On Tue, Feb 14, 2017 at 10:00 AM, Stefano Bagnara <mai...@bago.org 
> <mailto:mai...@bago.org>> wrote:
> FYI, a friend ESP told me that they are seeing this "access denied" too, 
> sending to Alice.it since a few days.
> 
> He also pointed me to this thread: 
> https://productforums.google.com/forum/#!topic/gmail-it/A4Vni9dE5pI 
> <https://productforums.google.com/forum/#!topic/gmail-it/A4Vni9dE5pI>
> An italian user using Gmail is trying to write to an user at alice.it 
> <http://alice.it/> and getting back the same bounce and the Google support 
> replies that they are working on it.
> 
> So, also Gmail see the same "access denied" from Alice.it: a trouble shared 
> is a trouble halved ?
> 
> Stefano
> 
> 
> On 13 February 2017 at 18:03, Stefano Bagnara <mai...@bago.org 
> <mailto:mai...@bago.org>> wrote:
> On 13 February 2017 at 17:47, Lindani Tshabangu <ltshaba...@groupon.com 
> <mailto:ltshaba...@groupon.com>> wrote:
> Thank you guys, 
> 
> @Stefano, we also received loads of "Service not available - too busy" on 
> Friday the 10th. 
> These stopped and we started receiving the "Service not available - access 
> denied"  from then on till today.
> 
> I receive the "Service not available - too busy" every day, every time, since 
> years (including today). Friday the 10th the weird thing was delayed delivery 
> (e.g: 10 minutes waiting at each "." before accepting the message): maybe you 
> have low timeouts on your side and your retries hurted some of their filters 
> and they blocked you.
> 
> Note that If you use a low session timeout when their servers are on they 
> knees then you'll end up delivery the same message over and over again and 
> this may lead to complaints and blocks.
> 
> You didn't answer when do you get that "Service not available - access 
> denied": at the connection? After the EHLO? After the MAIL FROM? the RCPT TO? 
> Or the "." at the end of DATA transmission?
> 
> @Maarten
> 
> We currently use 6 concurrent connections with no issues (had to increase 
> them from 3 to 6 because of their very long delays).
> 
> Interesting you got answers from them! Which address did you wrote? 
> @telecomitalia.it <http://telecomitalia.it/>  @tim.it <http://tim.it/> 
> @telecom.it <http://telecom.it/>  other ?
> 
> Stefano
>  
> 
> @Maarten, I will try changing our settings a bit.
> 
> Thanx again.
> 
> Kind regards
> ____________________
> Lindani Tshabangu
> Deliverability  EMEA
> Groupon International Ltd.
> Connaught House |1 Burlington Rd | Dublin 4, Ireland
> 
> 
> 
> On Mon, Feb 13, 2017 at 3:56 PM, Maarten Oelering <maar...@postmastery.net 
> <mailto:maar...@postmastery.net>> wrote:
> Hi Lindani,
> 
> Alice is part of Telecom Italia. We had some success in the past with abuse@ 
> or postmaster@.
> 
> Other “insider” tips:
> - use no more than 4 concurrent connections
> - send no more than 50 messages per connection
> - make sure you have low unknown user rate
> 
> Maarten
> Postmastery
> 
>> On 13 Feb 2017, at 16:29, Lindani Tshabangu via mailop <mailop@mailop.org 
>> <mailto:mailop@mailop.org>> wrote:
>> 
>> Good day, 
>> 
>> Has anyone experienced delivery issues in IT with the Alice.it 
>> <http://alice.it/> ISP of late. We have in particular been getting error 
>> messages like "Service not available - access denied"
>> 
>> I have tried contacting them with no response. 
>> 
>> If anyone has a contact email or anyone from Alice in this forum, please 
>> assist.
>> 
>> Kind regards
>> ____________________
>> Lindani Tshabangu
>> Deliverability  EMEA
>> Groupon International Ltd.
>> Connaught House |1 Burlington Rd | Dublin 4, Ireland
>> 
>> 
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