llvm dev - Jul 2020 - Mailing List Bounces

Myself and a few others have had repeated problems recently with 
llvm-commits either disabling or entirely removing our email 
subscriptions, complaining about excessive message bouncing.

Some people are on their own email servers, but others are on 
gmail/other big email providers.

I know there was a storage issue recently that included the llvm mailing 
list server, and I first saw this problem after the fix - I don't know 
if they are related though.

Has anyone else seen this?

Cheers, Simon.

Hi Simon,
> On Jul 4, 2020, at 11:57, Simon Pilgrim via llvm-dev <llvm-dev at
lists.llvm.org> wrote:
> 
> Myself and a few others have had repeated problems recently with
llvm-commits either disabling or entirely removing our email subscriptions,
complaining about excessive message bouncing.
> 
> Some people are on their own email servers, but others are on gmail/other
big email providers.
> 
> I know there was a storage issue recently that included the llvm mailing
list server, and I first saw this problem after the fix - I don't know if
they are related though.
> 
> Has anyone else seen this?

I also stopped receiving emails from llvm-commits (maybe a week ago). Not sure
what the issue was, I did not get any bounce messages or similar. But
unsubscribing and re-subscribing worked for me.

Cheers,
Florian

All,

There was a mailman configuration change during our efforts to stabilize the
mail server that resulted in people being unsubscribed from llvm-commits as soon
as any bounce occurred for their email address. I am very sorry for this
situation and it has been reverted.

Some backstory on what was going on. The mailman server was using up disk space
(for logs and queues) due to excessive bounces. We had over 4K aol.com email
addresses subscribed (to a couple lists) that appeared to be fake or at least
always bouncing. Mailman is configurable to remove an address after a certain
number of bounces. So it will retry an email address for a bit based upon what
you configure it to do before it removes the email address.

In addition to this, the amount of email traffic caused by bounces (or related
to it) triggered many email servers to put us on a "naughty list”. So, that
is why good email addresses may bounce and then if you have mailman configured
to immediately unsubscribe, we had people get removed that should not have. As I
said, we reverted this configuration change.

The mailman server is a current problem that we are working on a solution for.
If anyone has mailman expertise and would like to join the conversation, please
let me know!

-Tanya
> On Jul 4, 2020, at 5:41 AM, Florian Hahn via llvm-dev <llvm-dev at
lists.llvm.org> wrote:
> 
> Hi Simon,
> 
>> On Jul 4, 2020, at 11:57, Simon Pilgrim via llvm-dev <llvm-dev at
lists.llvm.org> wrote:
>> 
>> Myself and a few others have had repeated problems recently with
llvm-commits either disabling or entirely removing our email subscriptions,
complaining about excessive message bouncing.
>> 
>> Some people are on their own email servers, but others are on
gmail/other big email providers.
>> 
>> I know there was a storage issue recently that included the llvm
mailing list server, and I first saw this problem after the fix - I don't
know if they are related though.
>> 
>> Has anyone else seen this?
> 
> 
> I also stopped receiving emails from llvm-commits (maybe a week ago). Not
sure what the issue was, I did not get any bounce messages or similar. But
unsubscribing and re-subscribing worked for me.
> 
> Cheers,
> Florian
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