Re: replicator: User listing returned failure

[Alexey]

Wow. Sorry, maybe it works from morning or maybe somethings changes at 
the evening, but I may say that replication works fine. But I can 
confirm it now only with "less on mdbox file". But replication works!!!


Thanks Gerald.



On 2018-05-08 23:17, Alexey wrote:
I don't know if it makes a difference, I don't have quotes on my 
mail_plugins:

I don't have quotes too (It's difference between config file and
dovecot -n output)



Did you check permissons on the replication fifos?
For what? I think that problems on slave. How it should work in 
automatic mode?

I repeat that from slave manually all works fine:

   As I can see nothing happens automatically.
   But mx2:~# doveadm -D sync -u ab...@example.com -d -N -l 30 -U 
  successfully executed and getting mails from mx1.


prw-rw 1 dovecot mail   0 May  8 06:29 replication-notify-fifo




Does it work if you issue:

doveadm replicator replicate '*'

mx1:~# doveadm replicator replicate '*'
2 users updated



doveadm replicator status '*'

I already posted this output.



Do you have different hostnames for your servers?

Sure. You may see in listing that short hostnames are mx1 and mx2.

Re: replicator: User listing returned failure

[Alexey]

I don't know if it makes a difference, I don't have quotes on my 
mail_plugins:
I don't have quotes too (It's difference between config file and dovecot 
-n output)




Did you check permissons on the replication fifos?
For what? I think that problems on slave. How it should work in 
automatic mode?

I repeat that from slave manually all works fine:

   As I can see nothing happens automatically.
   But mx2:~# doveadm -D sync -u ab...@example.com -d -N -l 30 -U  
 successfully executed and getting mails from mx1.


prw-rw 1 dovecot mail   0 May  8 06:29 replication-notify-fifo




Does it work if you issue:

doveadm replicator replicate '*'

mx1:~# doveadm replicator replicate '*'
2 users updated



doveadm replicator status '*'

I already posted this output.



Do you have different hostnames for your servers?

Sure. You may see in listing that short hostnames are mx1 and mx2.

Re: replicator: User listing returned failure

[Gerald Galster]

> What about automatic replication without manually running of doveadm sync?
>>> As I can see nothing happens automatically.
>>> But mx2:~# doveadm -D sync -u ab...@example.com -d -N -l 30 -U   
>>> successfully executed and getting mails from mx1.

I don't know if it makes a difference, I don't have quotes on my mail_plugins:

mail_plugins = $mail_plugins notify replication

Did you check permissons on the replication fifos?

Does it work if you issue:

doveadm replicator replicate '*'
doveadm replicator status '*'

Do you have different hostnames for your servers?

Best regards
Gerald

lmtp panic with many recipients

[Olaf Hopp]

Hi,

I had an email with 58 recipients in the "To" and 13 in the "CC"
Delivering it from exim to dovecot lmtp panics (see below)
Panic: file smtp-address.c: line 533 (smtp_address_write): assertion failed: 
(smtp_char_is_qpair(*p))

# 2.3.1 (c5a5c0c82): /etc/dovecot/dovecot.conf
# Pigeonhole version 0.5.devel (61b47828)
# OS: Linux 2.6.32-696.23.1.el6.x86_64 x86_64 CentOS release 6.9 (Final)

Regards,
Olaf



May  8 10:01:52 irams2 dovecot: lmtp(17557): Debug: none: root=, index=, 
indexpvt=, control=, inbox=, alt=
May  8 10:01:52 irams2 dovecot: lmtp(17557): Connect from local
May  8 10:01:52 irams2 dovecot: 
lmtp(ms2t...@irams2.ira.uka.de)<17557><30+oHXBZ8VqVRAAApw0JKA>: Debug: Loading 
modules from directory: /usr/lib64/dovecot
May  8 10:01:52 irams2 dovecot: 
lmtp(ms2t...@irams2.ira.uka.de)<17557><30+oHXBZ8VqVRAAApw0JKA>: Debug: Module 
loaded: /usr/lib64/dovecot/lib90_sieve_plugin.so
May  8 10:01:52 irams2 dovecot: 
lmtp(ms2t...@irams2.ira.uka.de)<17557><30+oHXBZ8VqVRAAApw0JKA>: Debug: auth 
USER input: ms2test system_groups_user=ms2test uid=10852 gid=1602 home=/home/atis/ms2test
May  8 10:01:52 irams2 dovecot: 
lmtp(ms2t...@irams2.ira.uka.de)<17557><30+oHXBZ8VqVRAAApw0JKA>: Debug: changed 
username to ms2test
May  8 10:01:52 irams2 dovecot: lmtp(17557, ms2test): Debug: Effective 
uid=10852, gid=1602, home=/home/atis/ms2test
May  8 10:01:52 irams2 dovecot: lmtp(17557, ms2test): Debug: Namespace inbox: 
type=private, prefix=INBOX., sep=., inbox=yes, hidden=no, list=yes, 
subscriptions=yes location=maildir:~/Maildir
May  8 10:01:52 irams2 dovecot: lmtp(17557, ms2test): Debug: maildir++: 
root=/home/atis/ms2test/Maildir, index=, indexpvt=, control=, 
inbox=/home/atis/ms2test/Maildir, alt=
May  8 10:01:52 irams2 dovecot: lmtp(17557, ms2test): Debug: Namespace : 
type=private, prefix=, sep=, inbox=no, hidden=yes, list=no, subscriptions=no 
location=fail::LAYOUT=none
May  8 10:01:52 irams2 dovecot: lmtp(17557, ms2test): Debug: none: root=, 
index=, indexpvt=, control=, inbox=, alt=
May  8 10:01:52 irams2 dovecot: lmtp(ms2test)<17557><30+oHXBZ8VqVRAAApw0JKA>: 
Debug: sieve: Pigeonhole version 0.5.devel (61b47828) initializing
May  8 10:01:52 irams2 dovecot: lmtp(ms2test)<17557><30+oHXBZ8VqVRAAApw0JKA>: 
Debug: sieve: include: sieve_global is not set; it is currently not possible to include 
`:global' scripts.
May  8 10:01:52 irams2 dovecot: lmtp(ms2test)<17557><30+oHXBZ8VqVRAAApw0JKA>: 
Debug: sieve: file storage: Using active Sieve script path: 
/home/atis/ms2test/.dovecot.sieve
May  8 10:01:52 irams2 dovecot: lmtp(ms2test)<17557><30+oHXBZ8VqVRAAApw0JKA>: 
Debug: sieve: file storage: Using script storage path: /home/atis/ms2test/sieve
May  8 10:01:52 irams2 dovecot: lmtp(ms2test)<17557><30+oHXBZ8VqVRAAApw0JKA>: 
Debug: sieve: file storage: Relative path to sieve storage in active link: sieve/
May  8 10:01:52 irams2 dovecot: lmtp(ms2test)<17557><30+oHXBZ8VqVRAAApw0JKA>: 
Debug: sieve: file storage: Using Sieve script path: /home/atis/ms2test/.dovecot.sieve
May  8 10:01:52 irams2 dovecot: lmtp(ms2test)<17557><30+oHXBZ8VqVRAAApw0JKA>: 
Debug: sieve: file script: Opened script `ingo' from `/home/atis/ms2test/.dovecot.sieve'
May  8 10:01:52 irams2 dovecot: lmtp(ms2test)<17557><30+oHXBZ8VqVRAAApw0JKA>: 
Debug: sieve: file storage: Using Sieve script path: /etc/dovecot/sieve-master
May  8 10:01:52 irams2 dovecot: lmtp(ms2test)<17557><30+oHXBZ8VqVRAAApw0JKA>: 
Debug: sieve: file script: Opened script `sieve-master' from `/etc/dovecot/sieve-master'
May  8 10:01:52 irams2 dovecot: lmtp(ms2test)<17557><30+oHXBZ8VqVRAAApw0JKA>: 
Debug: sieve: Executed before user's personal Sieve script(1): /etc/dovecot/sieve-master
May  8 10:01:52 irams2 dovecot: lmtp(ms2test)<17557><30+oHXBZ8VqVRAAApw0JKA>: 
Debug: sieve: Using the following location for user's Sieve script: 
/home/atis/ms2test/.dovecot.sieve
May  8 10:01:52 irams2 dovecot: lmtp(ms2test)<17557><30+oHXBZ8VqVRAAApw0JKA>: Debug: 
Mailbox : Opened mail UID=1 because: header Message-ID (Cache file is 
unusable)
May  8 10:01:52 irams2 dovecot: lmtp(ms2test)<17557><30+oHXBZ8VqVRAAApw0JKA>: 
Debug: sieve: Opening script 1 of 2 from `/etc/dovecot/sieve-master'
May  8 10:01:52 irams2 dovecot: lmtp(ms2test)<17557><30+oHXBZ8VqVRAAApw0JKA>: 
Debug: sieve: Loading script /etc/dovecot/sieve-master
May  8 10:01:52 irams2 dovecot: lmtp(ms2test)<17557><30+oHXBZ8VqVRAAApw0JKA>: 
Debug: sieve: Script binary /etc/dovecot/sieve-master.svbin successfully loaded
May  8 10:01:52 irams2 dovecot: lmtp(ms2test)<17557><30+oHXBZ8VqVRAAApw0JKA>: 
Debug: sieve: binary save: not saving binary /etc/dovecot/sieve-master.svbin, because it is 
already stored
May  8 10:01:52 irams2 dovecot: lmtp(ms2test)<17557><30+oHXBZ8VqVRAAApw0JKA>: 
Debug: sieve: Executing script from `/etc/dovecot/sieve-master.svbin'
May  8 10:01:52 irams2 dovecot: lmtp(ms2test)<17557><30+oHXBZ8VqVRAAApw0JKA>: Debug: 
Mailbox : Opened mail UID=1 because: header List-Id (Cache file is 
unusable)
May  8 10:01:52 irams2 dovecot: 

Re: [sieve][regex] Matching multiple strings in the "Received" header

[Stephan Bosch]

Op 08/05/2018 om 08:42 schreef Adi Pircalabu:

On 08-05-2018 16:20, Gerald Galster wrote:

Hello Adi,

did you try:

" 
from.*(outbound.protection.outlook.com|.google.com|.yahoo.com|mx.aol.com) 
"


If you need to specify the posix character class:

[[:blank:]] means space and tab. With pcre it would be like [ \t]
[[:space:]] includes space, tab, newline, linefeed, formfeed, vertical
tab (in pcre like [ \t\n\r\f\v])

"[[:blank:]]from.*(outbound.protection.outlook.com|.google.com|.yahoo.com|mx.aol.com)[[:blank:]]" 



Thanks Gerald, none of your solutions worked, but I've just figured it 
out now. In the expression the space should only be added at the end, 
*not* at the beginning! In the Received header the first character 
isn't [[:blank:]], but "f", so I've been chasing the wild goose all 
this time because I started with the wrong assumption :)

Sorry for the noise, all good now.


Also keep in mind that "\" is first used for escaping the string itself, 
meaning that these need to be duplicated.


https://tools.ietf.org/html/rfc5228#section-2.4.2
https://tools.ietf.org/html/draft-murchison-sieve-regex-08#section-3

Regards,

Stephan.

Re: imapsieve: script not triggered

[Thomas Leuxner]

* Andreas Krischer  2018.05.07 19:58:

>   sieve_global_extensions = +vnd.dovecot.pipe

Hi,

my working configuration looks like this:

sieve_global_extensions = +vnd.dovecot.pipe +vnd.dovecot.execute

Regards
Thomas



signature.asc
Description: PGP signature

Re: imapsieve: script not triggered

[Andreas Krischer]

> Check that sieve-test actually shows it would do what you expect it to do.

sieve-test just shows: learn-spam: error: the imapsieve extension cannot be 
used outside IMAP.

Andreas

> Am 07.05.2018 um 20:56 schrieb Aki Tuomi :
> 
> 
> 
> On 2018-05-07 20:58, Andreas Krischer wrote:
>> Hi, folks!
>> 
>> My problem:
>> I set up dovecot with imapsieve to execute a script whenever a user copies a 
>> mail to his Spam folder (spam autolearning). Unfortunately this script is 
>> never executed regardless what I’m configuring for imapsieve. It looks like 
>> dovecot doesn’t really load the plugin…
>> 
>> The "dovecot -n" output is attached.
>> 
>> I already tried setting imapsieve_mailbox1_name to *, but even this does not 
>> execute the script… Also I tried a mailbox without mail_crypt enabled, no 
>> success as well.
>> 
>> In the attached mail.log (mail_debug=yes) you can see, that 
>> imap_sieve_plugin is loaded, but it isn’t really executed.
>> 
>> The normal (LMTP) sieve is working - if a mail is incoming the sieve module 
>> shows it work in mail.log:
>> 
>> May  7 17:54:04 dovecot dovecot: lmtp(postmas...@myhost.name): Debug: 
>> YEm9ILyS8FqSaAAAujt/SA: sieve: file storage: Storage path 
>> `/var/vmail/myhost.name/postmaster/sieve' not found
>> May  7 17:54:04 dovecot dovecot: lmtp(postmas...@myhost.name): Debug: 
>> YEm9ILyS8FqSaAAAujt/SA: sieve: file storage: Storage path 
>> `/var/vmail/myhost.name/postmaster/.dovecot.sieve' not found
>> May  7 17:54:04 dovecot dovecot: lmtp(postmas...@myhost.name): Debug: 
>> YEm9ILyS8FqSaAAAujt/SA: sieve: storage: No default script location configured
>> May  7 17:54:04 dovecot dovecot: lmtp(postmas...@myhost.name): Debug: 
>> YEm9ILyS8FqSaAAAujt/SA: sieve: User has no personal script
>> May  7 17:54:04 dovecot dovecot: lmtp(postmas...@myhost.name): Debug: 
>> YEm9ILyS8FqSaAAAujt/SA: sieve: file storage: Using script storage path: 
>> /etc/dovecot/sieve/after/
>> May  7 17:54:04 dovecot dovecot: lmtp(postmas...@myhost.name): Debug: 
>> YEm9ILyS8FqSaAAAujt/SA: sieve: file script: Opened script `spam' from 
>> `/etc/dovecot/sieve/after/spam.sieve'
>> May  7 17:54:04 dovecot dovecot: lmtp(postmas...@myhost.name): Debug: 
>> YEm9ILyS8FqSaAAAujt/SA: sieve: executed after user's Sieve script(1): 
>> /etc/dovecot/sieve/after/spam.sieve
>> May  7 17:54:04 dovecot dovecot: lmtp(postmas...@myhost.name): Debug: 
>> Mailbox : Opened mail UID=1 because: header Message-ID (Cache 
>> file is unusable)
>> May  7 17:54:04 dovecot dovecot: lmtp(postmas...@myhost.name): Debug: 
>> YEm9ILyS8FqSaAAAujt/SA: sieve: Opening script 1 of 1 from 
>> `/etc/dovecot/sieve/after/spam.sieve'
>> May  7 17:54:04 dovecot dovecot: lmtp(postmas...@myhost.name): Debug: 
>> YEm9ILyS8FqSaAAAujt/SA: sieve: Loading script 
>> /etc/dovecot/sieve/after/spam.sieve
>> May  7 17:54:04 dovecot dovecot: lmtp(postmas...@myhost.name): Debug: 
>> YEm9ILyS8FqSaAAAujt/SA: sieve: Script binary 
>> /etc/dovecot/sieve/after/spam.svbin successfully loaded
>> May  7 17:54:04 dovecot dovecot: lmtp(postmas...@myhost.name): Debug: 
>> YEm9ILyS8FqSaAAAujt/SA: sieve: binary save: not saving binary 
>> /etc/dovecot/sieve/after/spam.svbin, because it is already stored
>> May  7 17:54:04 dovecot dovecot: lmtp(postmas...@myhost.name): Debug: 
>> YEm9ILyS8FqSaAAAujt/SA: sieve: Executing script from 
>> `/etc/dovecot/sieve/after/spam.svbin'
>> 
>> 
>> I already spent hours on this problem so please let me know if you have any 
>> idea what the problem could be… :(
>> 
>> Thanks in advance!
>> 
>> Andreas
>> 
>> 
>> 
> 
> Check that sieve-test actually shows it would do what you expect it to do.
> 
> Aki

Re: [sieve][regex] Matching multiple strings in the "Received" header

[Adi Pircalabu]

On 08-05-2018 16:20, Gerald Galster wrote:

Hello Adi,

did you try:

" 
from.*(outbound.protection.outlook.com|.google.com|.yahoo.com|mx.aol.com) 
"


If you need to specify the posix character class:

[[:blank:]] means space and tab. With pcre it would be like [ \t]
[[:space:]] includes space, tab, newline, linefeed, formfeed, vertical
tab (in pcre like [ \t\n\r\f\v])

"[[:blank:]]from.*(outbound.protection.outlook.com|.google.com|.yahoo.com|mx.aol.com)[[:blank:]]"


Thanks Gerald, none of your solutions worked, but I've just figured it 
out now. In the expression the space should only be added at the end, 
*not* at the beginning! In the Received header the first character isn't 
[[:blank:]], but "f", so I've been chasing the wild goose all this time 
because I started with the wrong assumption :)

Sorry for the noise, all good now.

Cheers,

---
Adi Pircalabu

Re: replicator: User listing returned failure

[Alexey]

Hello Gerald,



Besides you have configured mysql userdb twice:


userdb {
 args = /etc/dovecot/dovecot-sql-master.conf.ext
 driver = sql
}
userdb {
 args = /etc/dovecot/dovecot-sql.conf.ext
 driver = sql
}
Great!!! This was the root cause. Second userdb with 
dovecot-sql-master.conf rewrite the first one, but sql-master.conf 
didn't include iterate_query. I removed the wrong second declaration.

Thanks.




What about automatic replication without manually running of doveadm 
sync?

As I can see nothing happens automatically.
But mx2:~# doveadm -D sync -u ab...@example.com -d -N -l 30 -U   
successfully executed and getting mails from mx1.


Regards,
Alexey

Re: [sieve][regex] Matching multiple strings in the "Received" header

[Gerald Galster]

Hello Adi,

did you try:

" from.*(outbound.protection.outlook.com|.google.com|.yahoo.com|mx.aol.com) "

If you need to specify the posix character class:

[[:blank:]] means space and tab. With pcre it would be like [ \t]
[[:space:]] includes space, tab, newline, linefeed, formfeed, vertical tab (in 
pcre like [ \t\n\r\f\v])

"[[:blank:]]from.*(outbound.protection.outlook.com|.google.com|.yahoo.com|mx.aol.com)[[:blank:]]"

Best regards,
Gerald


> Am 08.05.2018 um 03:38 schrieb Adi Pircalabu :
> 
> On 08-05-2018 2:43, Benny Pedersen wrote:
>> Adi Pircalabu skrev den 2018-05-07 05:10:
>>> How should I write it to also match the space character at both the
>>> beginning and end of the expression?
>> use \ before space char
> 
> Tks. Just tried these two, unsuccessfully:
> "\.from.*(outbound.protection.outlook.com|.google.com|.yahoo.com|mx.aol.com)\."
> "\ from.*(outbound.protection.outlook.com|.google.com|.yahoo.com|mx.aol.com)\ 
> "
> 
> However, this expression always matches:
> "from.*(outbound.protection.outlook.com|.google.com|.yahoo.com|mx.aol.com)"
> 
> What am I missing?
> 
> ---
> Adi Pircalabu

Re: replicator: User listing returned failure

[Gerald Galster]

Hello Alexey,

> mx1:~# dovecot --version
> 2.2.27 (c0f36b0)
> 
> From dovecot.log:
> May 07 19:27:41 auth-worker(34348): Warning: mysql: Query failed, retrying: 
> Unknown column 'username' in 'field list'
> May 07 19:27:41 auth-worker(34348): Debug: sql(*): SELECT username, domain 
> FROM users
> May 07 19:27:41 auth-worker(34348): Error: sql: Iterate query failed: Unknown 
> column 'username' in 'field list' (using built-in default iterate_query: 
> SELECT username, domain FROM users)
> May 07 19:27:41 auth-worker(34348): Debug: sql(*): SELECT id AS username, 
> domain FROM users
> May 07 19:27:41 replicator: Error: User listing returned failure
> May 07 19:27:41 replicator: Error: listing users failed, can't replicate 
> existing data


> dovecot-sql.conf.ext:
> driver = mysql
> ...
> iterate_query = SELECT id AS username, domain FROM users

you defined a custom iterate_query but the debug message says it uses the 
built-in default:

> using built-in default iterate_query: SELECT username, domain FROM users


Please check if your config is included:

conf.d/10-auth.conf: !include auth-sql.conf.ext

conf.d/auth-sql.conf.ext:

userdb {
  driver = sql
  args = /etc/dovecot/dovecot-sql.conf.ext
}

Maybe your dovecot-sql.conf.ext is somewhere dovecot does not look for it.

Besides you have configured mysql userdb twice:

> userdb {
>  args = /etc/dovecot/dovecot-sql-master.conf.ext
>  driver = sql
> }
> userdb {
>  args = /etc/dovecot/dovecot-sql.conf.ext
>  driver = sql
> }



Best regards,
Gerald





> 
> mx1:~# doveadm replicator status
> Queued 'sync' requests0
> Queued 'high' requests0
> Queued 'low' requests 0
> Queued 'failed' requests  0
> Queued 'full resync' requests 0
> Waiting 'failed' requests 2
> Total number of known users   2
> 
> 
> mx1:~# doveadm replicator status '*'
> username  
>   priority fast sync full sync success sync failed
> ab...@example.com 
>   none 00:03:01  01:06:36  -y
> ad...@exmaple.com 
>   none 00:03:41  01:31:49  -y
> 
> 
> 
> From slave:
> 
> mx2:~# cat /etc/dovecot/conf.d/90-replication.conf
> # use tcp:hostname as the dsync target
> plugin {
>  mail_replica = tcp:mx1 # use doveadm_port
> }
> 
> 
> As I can see nothing happens automatically.
> But mx2:~# doveadm -D sync -u ab...@example.com -d -N -l 30 -U   successfully 
> executed and getting mails from mx1.
> 
> 
> 
> 
> dovecot-sql.conf.ext:
> driver = mysql
> connect = host=localhost dbname=vmail user=sqlmail 
> password=sqL_hidden033|TGPAS
> default_pass_scheme = SHA512-CRYPT
> password_query = SELECT id AS username, password, domain FROM users WHERE id 
> = '%n' AND domain = '%d' AND active = 'Y'
> user_query = SELECT id AS username, uid, gid, home, concat('*:storage=', 
> quota, 'M' ) as quota_rule FROM users WHERE id = '%n' AND domain = '%d'
> iterate_query = SELECT id AS username, domain FROM users
> 
> Regards,
> Alexey
> 
> 
> mx1:~# dovecot -n
> # 2.2.27 (c0f36b0): /etc/dovecot/dovecot.conf
> # Pigeonhole version 0.4.16 (fed8554)
> # OS: Linux 4.9.0-6-amd64 x86_64 Debian 9.4
> auth_master_user_separator = *
> auth_verbose = yes
> auth_verbose_passwords = sha1
> default_vsz_limit = 512 M
> doveadm_password =  # hidden, use -P to show it
> doveadm_port = 994
> hostname = mx1.example.com
> imap_client_workarounds = delay-newmail tb-extra-mailbox-sep tb-lsub-flags
> imap_idle_notify_interval = 12 mins
> lda_mailbox_autocreate = yes
> lda_mailbox_autosubscribe = yes
> lmtp_save_to_detail_mailbox = yes
> log_path = /var/log/dovecot/dovecot.log
> mail_access_groups = mail
> mail_location = mdbox:~/mdbox:UTF-8
> mail_plugins = " notify replication"
> managesieve_notify_capability = mailto
> managesieve_sieve_capability = fileinto reject envelope encoded-character 
> vacation subaddress comparator-i;ascii-numeric relational regex imap4flags 
> copy include variables body enotify environment mailbox date index ihave 
> duplicate mime foreverypart extracttext
> namespace inbox {
>  inbox = yes
>  location =
>  mailbox Drafts {
>auto = subscribe
>special_use = \Drafts
>  }
>  mailbox Junk {
>auto = subscribe
>special_use = \Junk
>  }
>  mailbox Sent {
>auto = subscribe
>special_use = \Sent
>  }
>  mailbox Trash {
>auto = subscribe
>special_use = \Trash
>  }
>  prefix =
> }
> passdb {
>  args = /etc/dovecot/dovecot-sql-master.conf.ext
>  driver = sql
>  master = yes
>  pass = yes
> }
> passdb {
>  args = /etc/dovecot/dovecot-sql.conf.ext
>  driver = sql
> }
> plugin {
>  quota = dict:User quota::proxy::quota
>  quota_rule = *:storage=100G
>  quota_rule2 = Trash:storage=+10G
>  quota_warning = storage=95%% quota-warning 95 %u
>  quota_warning2 = storage=80%% quota-warning 80 %u
>  sieve_before =