Re: [mailop] Best strategy to prune address list

2019-11-23 Thread Rolf E. Sonneveld via mailop
Hi, Steve, On 23-11-19 20:18, Steve Atkins via mailop wrote: On 23/11/2019 19:05, Tom Ivar Helbekkmo via mailop wrote: "Rolf E. Sonneveld via mailop" writes: What would be a good strategy for this customer to update his list of contacts? If it's old enough that they

[mailop] Best strategy to prune address list

2019-11-23 Thread Rolf E. Sonneveld via mailop
Hi, over the years, one of my customers has built up a list of contacts (mail addresses). He didn't use the list for quite some time and now he wants to prune the list by checking the existence/validity of the addresses and remove the addresses that no longer exists. Simply sending a

[mailop] Question on presence of sender certificate in an enveloped-data S/MIME bodypart

2018-08-24 Thread Rolf E. Sonneveld
All, can anyone enlighten me on the following two questions, related to S/MIME: 1. does an S/MIME message with a bodypart labelled application/pkcs7-mime and smime-type=enveloped-data always/usually/never carry the certificate of the sender? 2. I tried to extract the certificates from the

Re: [mailop] GDPR and SMTP in general

2018-05-25 Thread Rolf E. Sonneveld
Hi, Paul, On 25-05-18 11:46, Paul Smith wrote: I've been going through some GDPR stuff. Amongst other things, we provide SMTP relay services to some customers, so are a 'Data Processor' under GDPR. In itself, that's OK as our own operations are GDPR compliant. But, how it interacts with

Re: [mailop] Gmail & TLS SNI

2018-04-16 Thread Rolf E. Sonneveld
On 16-04-18 21:39, Brandon Long via mailop wrote: [...] I think this is an interesting stance, and I'm sure you've heard the objections to this before. You don't have to trust every CA, you certainly don't need to trust every CA for every host, and there are other tools to be used here such as

Re: [mailop] Message Store on NFS in a high available setup

2017-10-03 Thread Rolf E. Sonneveld
Hi, Luis, William, Steve, Noel, Kurt, Andris and all others who responded off-list, many thanks for answering my mail. Apologies for my late reply, I've been quite busy trying to pinpoint a mail server/storage problem, see below. Steve wrote: In this situation NFS is more of a delivery

[mailop] Message Store on NFS in a high available setup

2017-09-27 Thread Rolf E. Sonneveld
Hi, is there anyone working in a larger/'more demanding' environment, using NFS for his/her message store, where there is a business requirement of High Availability? If so, what commercial or open source storage solution is used? I have a similar requirement for a project and am looking for

Re: [mailop] What are "printing ASCII characters" RFC 850/2822 (was: Re: Lotus Notes and "250 2.6.0 Bad message, but will be delivered anyway"))

2017-06-09 Thread Rolf E. Sonneveld
On 09-06-17 18:19, Johann Klasek wrote: On Fri, Jun 09, 2017 at 04:22:56PM +0200, Benoit Panizzon wrote: [..] So I'm trying to figure out, if lotus notes is wrong, or amavis being too picky? Not so easy... If I browse the RFC regarding Message ID and SMTP, I basically get the not so clear

Re: [mailop] Lotus Notes and "250 2.6.0 Bad message, but will be delivered anyway"

2017-06-09 Thread Rolf E. Sonneveld
Hi, Benoit, On 09-06-17 09:30, Benoit Panizzon wrote: Hello We have a 'challenging' problem between two companies sending each other emails. The sender keeps getting notifications, that his emails to the recipient are delayed. But this is not true. Analyzing the email headers the recipient

Re: [mailop] Microsoft Blacklisting IPs

2016-11-17 Thread Rolf E. Sonneveld
On 17-11-16 20:25, Ken O'Driscoll wrote: Hi Bastiaan, Other data centres have the same challenge as you. Hosting providers have historically had a bad reputation because a spammer can use a stolen or pre-paid card to sign up and start sending emails in less than an hour. If you offer shared

Re: [mailop] So, about this iOS10 unsubscribe feature...

2016-09-15 Thread Rolf E. Sonneveld
On 15-09-16 22:55, valdis.kletni...@vt.edu wrote: On Thu, 15 Sep 2016 16:47:15 -0400, Josh Nason said: What if a sender doesn't have list-unsubscribe enabled? Then they should get with the program. The RFC is from last century. you mean: last millenium? ;-) /rolf

Re: [mailop] DMARC question

2016-06-24 Thread Rolf E. Sonneveld
Hi, Terry, On 24-06-16 09:14, Terry Barnum wrote: I've been checking our newly configured DMARC status on the (excellent) dmarcian.com site. We're being joe jobbed every 2 weeks so I'm hoping DMARC severely cuts into that spammer's delivery success. I still hate getting

Re: [mailop] Migration of mail client profiles from one system to another

2016-02-23 Thread Rolf E. Sonneveld
Hi, Graeme, > On 23 Feb 2016, at 13:52, Rolf E. Sonneveld > <r.e.sonnev...@sonnection.nl> wrote: > > In the past something like ACAP was developed to aid in these types > > of situations, but AFAIK Outlook does not support ACAP and ACAP > > itself is more or less