I don't get any posts for this forum in Thunderbird since today. It worked previously.

the URL : https://forum.dlang.org/feed/posts
works in Firefox, but creating a new account and subscription in Thunderbird he says 'The Feed URL is not a valid feed' and the validation link gets me here:
http://validator.w3.org/feed/check.cgi?url=https%3A%2F%2Fforum.dlang.org%2Ffeed%2Fposts

------------------
This feed does not validate.

    line 868, column 136: XML parsing error: <unknown>:868:136: reference to invalid character number [help]

        ... an&gt;On 2018-05-22 18:34:34 +0000, Ali &#x03;‡ehreli said:
                                                     ^

In addition, interoperability with the widest range of feed readers could be improved by implementing the following recommendation.

    line 171, column 87: Two entries with the same id: https://issues.dlang.org/show_bug.cgi?id=18898 [help]

        ... //issues.dlang.org/show_bug.cgi?id=18898</id><title>[Issues] [Issue 1889 ...
------------------

Ali, your book is awesome, but now you broke the feed! :)

any ideas?

On 05/23/2018 10:25 AM, number wrote:
> I don't get any posts for this forum in Thunderbird since today. It
> worked previously.

Stop playing with Thunderbird's settings! :p

> the URL : https://forum.dlang.org/feed/posts
> works in Firefox, but creating a new account and subscription in
> Thunderbird he says 'The Feed URL is not a valid feed' and the
> validation link gets me here:
> http://validator.w3.org/feed/check.cgi?url=https%3A%2F%2Fforum.dlang.org%2Ffeed%2Fposts

I don't think I'm using "feeds" with Thunderbird. Instead, I have an NNTP "account" in Thunderbird:

  www.digitalmars.com
  port: 119

Once that account was added, I had "subscribed" to some of the newsgroups.

> ------------------
> This feed does not validate.
>
>      line 868, column 136: XML parsing error: <unknown>:868:136:
> reference to invalid character number [help]
>
>          ... an&gt;On 2018-05-22 18:34:34 +0000, Ali &#x03;‡ehreli said:

The source of the same message looks like this for me in Thunderbird:

  From: =?UTF-8?Q?Ali_=c3=87ehreli?= <acehreli@yahoo.com>

I did not set that manually; either Thunderbird or my Yahoo account (which is my default SMTP account) must have done it. As far as I know, that's the correct value.

> In addition, interoperability with the widest range of feed readers
> could be improved by implementing the following recommendation.
>
>      line 171, column 87: Two entries with the same id:
> https://issues.dlang.org/show_bug.cgi?id=18898 [help]

Amen! I have no idea what to do about it. :)

>          ...
> //issues.dlang.org/show_bug.cgi?id=18898</id><title>[Issues] [Issue 1889
> ...
> ------------------
>
> Ali, your book is awesome, but now you broke the feed! :)
>
> any ideas?

Not here... :/

Ali

On Wednesday, 23 May 2018 at 18:50:37 UTC, Ali Çehreli wrote:
>
> I don't think I'm using "feeds" with Thunderbird. Instead, I have an NNTP "account" in Thunderbird:
>
>   www.digitalmars.com
>   port: 119
>
> Once that account was added, I had "subscribed" to some of the newsgroups.
>

Thanks, that works much better, though i don't have links to the web version of posts as i had previously.

How do the newsgroups match to the forum categories (on the left here in the forum), or specifically, what is the newsgroup for 'general' for example?

> The source of the same message looks like this for me in Thunderbird:
>
>   From: =?UTF-8?Q?Ali_=c3=87ehreli?= <acehreli@yahoo.com>
>
> I did not set that manually; either Thunderbird or my Yahoo account (which is my default SMTP account) must have done it. As far as I know, that's the correct value.
>

I didn't even consider it could have indeed been caused on your side, I thought maybe the forum software / feed generation was flawed.

> > any ideas?
>
> Not here... :/
>
> Ali

It was already helpful, thanks! And I think the feed would work again, since the validator doesn't show the parsing error anymore.

On 05/24/2018 06:36 AM, number wrote:
> On Wednesday, 23 May 2018 at 18:50:37 UTC, Ali Çehreli wrote:

> How do the newsgroups match to the forum categories (on the left here in
> the forum), or specifically, what is the newsgroup for 'general' for
> example?

These are the three I have and the first one is "General":

  news://www.digitalmars.com:119/digitalmars.D
  news://www.digitalmars.com:119/digitalmars.D.announce
  news://www.digitalmars.com:119/digitalmars.D.learn

>>   From: =?UTF-8?Q?Ali_=c3=87ehreli?= <acehreli@yahoo.com>
>>
>> I did not set that manually; either Thunderbird or my Yahoo account
>> (which is my default SMTP account) must have done it. As far as I
>> know, that's the correct value.
>>
>
> I didn't even consider it could have indeed been caused on your side,

It could very well have been my fault in the olden days when I remember setting it manually in an older email client. :)

Ali

On Thursday, 24 May 2018 at 13:36:03 UTC, number wrote:
> Thanks, that works much better, though i don't have links to the web version of posts as i had previously.

One thing you can do via NNTP which you can't do via feeds is post and reply :)

> How do the newsgroups match to the forum categories (on the left here in the forum), or specifically, what is the newsgroup for 'general' for example?

This file is the source of truth for the forum.dlang.org mappings:

https://github.com/CyberShadow/DFeed/blob/master/config/gengroups.d

On 24.05.2018 16:13, Ali Çehreli wrote:
> On 05/24/2018 06:36 AM, number wrote:
>  > On Wednesday, 23 May 2018 at 18:50:37 UTC, Ali Çehreli wrote:
> 
>  > How do the newsgroups match to the forum categories (on the left here in
>  > the forum), or specifically, what is the newsgroup for 'general' for
>  > example?
> 
> These are the three I have and the first one is "General":
> 
>    news://www.digitalmars.com:119/digitalmars.D
>    news://www.digitalmars.com:119/digitalmars.D.announce
>    news://www.digitalmars.com:119/digitalmars.D.learn
> 

.D does it, thanks! I wasn't sure if its just a collection of all the others.

On 24.05.2018 16:13, Ali Çehreli wrote:
> On 05/24/2018 06:36 AM, number wrote:
>  > On Wednesday, 23 May 2018 at 18:50:37 UTC, Ali Çehreli wrote:
> 
>  > How do the newsgroups match to the forum categories (on the left here in
>  > the forum), or specifically, what is the newsgroup for 'general' for
>  > example?
> 
> These are the three I have and the first one is "General":
> 
>    news://www.digitalmars.com:119/digitalmars.D
>    news://www.digitalmars.com:119/digitalmars.D.announce
>    news://www.digitalmars.com:119/digitalmars.D.learn
> 

.D does it, thanks! I wasn't sure if its just a collection of all the others.

On 24.05.2018 16:20, Vladimir Panteleev wrote:
> 
> This file is the source of truth for the forum.dlang.org mappings:
> 
> https://github.com/CyberShadow/DFeed/blob/master/config/gengroups.d
> 

are the mlOnly ones like 'phobos' accessible, since they are public via the forum?  tried with server lists.puremagic.com but didn't work.

On Thursday, 24 May 2018 at 15:14:11 UTC, number wrote:
> are the mlOnly ones like 'phobos' accessible, since they are public via the forum?  tried with server lists.puremagic.com but didn't work.

To access mailing lists with an email/news client, like Thunderbird, you will need to subscribe to them, e.g. at:

http://lists.puremagic.com/cgi-bin/mailman/listinfo/phobos

Unfortunately there is no way to download the archives for local browsing, only new messages will be delivered to your inbox. Replying to them is the same as replying to an email.

On 24.05.2018 17:38, Vladimir Panteleev wrote:
> On Thursday, 24 May 2018 at 15:14:11 UTC, number wrote:
>> are the mlOnly ones like 'phobos' accessible, since they are public via the forum?  tried with server lists.puremagic.com but didn't work.
> 
> To access mailing lists with an email/news client, like Thunderbird, you will need to subscribe to them, e.g. at:
> 
> http://lists.puremagic.com/cgi-bin/mailman/listinfo/phobos
> 
> Unfortunately there is no way to download the archives for local browsing, only new messages will be delivered to your inbox. Replying to them is the same as replying to an email.
> 

Ok, thanks!