[Dovecot] SUMMARY: LDA vs LMTP, Cyrus SASL, verbose_proctitle

Timo Sirainen tss at iki.fi
Tue Apr 12 17:17:10 EEST 2011

On Mon, 2011-04-11 at 18:19 -0700, Joseph Tam wrote:

> Also, one significant advantage not mentioned for LMTP was that one
> delivery failure to multiple recipients can be disambiguated; LDA can only
> return an exit code to be tested by the MTA, but the MTA cannot know
> which recipient(s) generated the error.

In almost all setups MTA delivers mails to LDA one at a time. Multiple
deliveries are useful only if you want to try to get the same mail file
hard linked to all recipients. So normally this is a non-issue.

> > Lastly, toggling verbose_proctitle seems to have no effect on the output
> > of ps.  Is verbose_proctitle broken for Solaris?
> The answer to is verbose_proctitle is broken for Solaris.  There is
> no setproctitle(), and ps does not report changes to a process's argv[]:
>  	echo "main(int c,char**v){**v='x';sleep(9);}" | \
>  		gcc -xc -o y -; ./y; rm y &
>  	ps -f

IIRC /usr/ucb/ps shows the changes.

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