Re: Sporadically deferred mail, followed by 456 Address temporarily unavailable

On 22.10.2023 13:47, Sam Varshavchik wrote:
> On Sun, Oct 22, 2023 at 6:46 AM Norbert Harrer <[email protected]> wrote:
>
>
>     Once I use -V 1 or omit -V, the complete output of maildrop shows
>     up in syslog. I guess the long maildrop output got truncated
>     somewhere?
>
>
> Yes, there are various limits. syslog itself cuts off long lines, and 
> Courier will  only capture output from a delivery process up to a 
> certain point, to prevent a rogue process from pummeling the log files 
> with junk.

That makes sense.

>
>     "courier show all" showed that the address was blacklisted.
>
>     I couldn't clear it with either "courier clear all" or "courier
>     clear <mailaddress>." "courier show all" still displayed the same
>     address. However, I don't remember if I had tried to run "courier
>     flush" after "courier clear" once more.
>
>
> Which version of Courier are you running? There was a bug related to 
> this which was fixed in 1.0, which was released in 2018.

It's 1.0.16.

dpkg -l | grep courier
ii  courier-authdaemon 0.71.1-2                                     
amd64        Courier authentication daemon
ii  courier-authlib 0.71.1-2                                     
amd64        Courier authentication library
ii  courier-authlib-mysql 0.71.1-2                                     
amd64        MySQL support for the Courier authentication library
ii  courier-authlib-userdb 0.71.1-2                                     
amd64        userdb support for the Courier authentication library
ii  courier-base 1.0.16-3                                     
amd64        Courier mail server - base system
ii  courier-doc 1.0.16-3                                     
all          Courier mail server - additional documentation
ii  courier-imap 5.0.13+1.0.16-3                              
amd64        Courier mail server - IMAP server
ii  courier-mta 1.0.16-3                                     
amd64        Courier mail server - ESMTP daemon
ii  courier-pcp 1.0.16-3                                     
amd64        Courier mail server - PCP server
ii  courier-pop 1.0.16-3                                     
amd64        Courier mail server - POP3 server
ii  courier-webadmin 1.0.16-3                                     
amd64        Courier mail server - web-based administration frontend

I believe that this is the latest version available in the stable Debian 
branch.

I will investigate further if this problem reoccurs.

By the way, since I have your attention. Thank you so much for this 
wonderful piece of software. I have been using Courier for many years, 
and it runs quietly and stable day in and day out. The only times there 
were problems were when I made mistakes.

Thank you,
Norbert.

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