[exim] Re: locking et al.

2024-02-10 Thread Andrew C Aitchison via Exim-users
On Sat, 10 Feb 2024, graeme vetterlein via Exim-users wrote: ... I'm probably worrying about nothing, this is a standard Debian install and this same issue exists for Thunderbird, pine, mutt etc If you are being paranoid, I'll mention that if you are mounting the file system over the network

[exim] Re: locking et al.

2024-02-10 Thread Jeremy Harris via Exim-users
On 10/02/2024 16:24, graeme vetterlein via Exim-users wrote: mail_spool:   debug_print = "T: appendfile for $local_part@$domain"   driver = appendfile   file = /var/mail/$local_part_data   delivery_date_add   envelope_to_add   return_path_add   group = mail   mode = 0660   mode_fail_narr

[exim] Re: locking et al.

2024-02-10 Thread Andreas Metzler via Exim-users
On 2024-02-10 graeme vetterlein via Exim-users wrote: > So, taking j...@wizmail.org URL: > https://exim.org/exim-html-current/doc/html/spec_html/ch-the_appendfile_transport.html > I see the text:  (I've added **highlights**) [...] > use_fcntl_lock     Use: appendfile     Type: boolean Default:

[exim] Re: locking et al.

2024-02-10 Thread graeme vetterlein via Exim-users
So, taking j...@wizmail.org URL: https://exim.org/exim-html-current/doc/html/spec_html/ch-the_appendfile_transport.html I see the text:  (I've added **highlights**) ...Before appending to a file, a number of security checks are made, and the file is locked. A detailed description is given be

[exim] Re: locking et al.

2024-02-06 Thread Ian Z via Exim-users
On Mon, Feb 05, 2024 at 04:20:19PM +, Andrew C Aitchison via Exim-users wrote: > *If* maildrop has problems working exim's way, there is exim_lock > which will lock a given mailbox and then call whatever shell or > script you wish to work on the mailbox ... > https://www.exim.org/exim-html-c

[exim] Re: locking et al.

2024-02-05 Thread Andrew C Aitchison via Exim-users
On Mon, 5 Feb 2024, Jeremy Harris via Exim-users wrote: On 2/5/24 15:01, graeme vetterlein via Exim-users wrote: But it occurs to me I'm rather "living on the edge" here I have multiple cronjobs an I guess with a single edit I could end up with multiple writers. So I guess I need to ensure mai

[exim] Re: locking et al.

2024-02-05 Thread Jeremy Harris via Exim-users
On 2/5/24 15:01, graeme vetterlein via Exim-users wrote: But it occurs to me I'm rather "living on the edge" here I have multiple cronjobs an I guess with a single edit I could end up with multiple writers. So I guess I need to ensure maildrop and exim4 share a single view of locking . Exim's

[exim] Re: locking et al.

2024-02-05 Thread Evgeniy Berdnikov via Exim-users
On Mon, Feb 05, 2024 at 03:01:03PM +, graeme vetterlein via Exim-users wrote: > BTW this came to my attention while debugging a maildrop setup I noted it > using flock(2) I also note it can use dot-lock files. Now fetchmail, > maildrop, exmim4, procmail etc all work together in many combinatio