Sniff the traffic between sogod and your Sieve server and post the result.

tcpdump of the traffic. I got the error

.4@.@.]..........^.9.x....35...............M....NO {1186}..
1:1: In command: Eachstring must be a supported sieve extension. These are not: "imapflags"..
2:1: While parsing command:..
2:198: While parsing block:..
4:5: In command: Command unknown: addflag..
2:1: While parsingcommand:..
2:198: While parsing block:..
4:5: While parsing command:..
4:13: Whileparsing arguments:..
4:13: In argument: Why is this string/list here?..
9:1: While parsing command:..
9:61: While parsing block:..
11:5: In command: Command unknown: addflag..
9:1:While parsing command:..
9:61: While parsing block:..
11:5: Whileparsing command:..
11:13: While parsing arguments:..
11:13: In argument: Why is this string/list here?..
13:1: While parsing command:..
13:54: While parsing block:..
15:5: In command: Command unknown: addflag..
13:1: While parsing command:..
13:54: While parsingblock:..
15:5: While parsing command:..
15:13: While parsing arguments:..
15:13: In argument: Why is this string/list here?..
17:1:While parsing command:..
17:54: While parsing block:..
19:5: In command: Command unknown: addflag..
17:1: While parsing command:..
17:54: While parsing block:..
19:5: While parsingcommand:..
19:13: While parsing arguments:..
19:13: In argument: Why is this string/list here?......

Is it possible to disabled imapflag for sieve in sogo ?

Or better: to use imap4flag as in RFC

This is now fixed. Please try with the upcoming nightly build (available in 0000036:0000012 hours).

Always the same bug with sogo 2.0.3

tcpdump -A -s1024 -i lo0 port 4190

tcpdump: listening on lo0, link-type LOOP
19:27:53.521565 localhost.12405 > localhost.sieve: S 1913539140:1913539140(0) win 16384 <mss 33112,nop,nop,sackOK,nop,wscale 3,nop,nop,timestamp 2584451913 0> (DF)
E..@..@.@...........0u.^r.JD......@.I......X...........
.
.I....
19:27:53.521591 localhost.sieve > localhost.12405: S 22277190:22277190(0) ack 1913539141 win 16384 <mss 33112,nop,nop,sackOK,nop,wscale 3,nop,nop,timestamp 2504538015 2584451913> (DF)
E..@.>@.@.Ew.........^0u.S.Fr.JE..@..I.....X...........
.H7..
.I
19:27:53.521611 localhost.12405 > localhost.sieve: . ack 1 win 2048 <nop,nop,timestamp 2584451913 2504538015> (DF)
E..4|.@.@...........0u.^r.JE.S.G...........
.
.I.H7.
tcpdump: WARNING: compensating for unaligned libpcap packets
19:27:53.529714 localhost.sieve > localhost.12405: P 1:269(268) ack 1 win 2048 <nop,nop,timestamp 2504538015 2584451913> (DF)
t.@.@............^0u.S.Gr.JE...........
.H7..
.I"IMPLEMENTATION" "Archiveopteryx 3.1.3"
"SIEVE" "body comparator-i;ascii-casemap comparator-i;ascii-numeric comparator-i;octet date ereject envelope fileinto ihave reject relational subaddress vacation"
"SASL" "CRAM-MD5 PLAIN"
"VERSION" "1.0"
"X-AOX-EXPLAIN"
OK
....
19:27:53.529748 localhost.12405 > localhost.sieve: . ack 269 win 2014 <nop,nop,timestamp 2584451913 2504538015> (DF)
dP@.@..q........0u.^r.JE.S.S...........
.
.I.H7."IMP
19:27:53.530284 localhost.12405 > localhost.sieve: P 1:49(48) ack 269 win 2048 <nop,nop,timestamp 2584451913 2504538015> (DF)
E..d.,@.@.Ie........0u.^r.JE.S.S.....b.....
.
.I.H7.AUTHENTICATE "PLAIN" {20+}
amcAamcASGF0ZXIxMjM=
19:27:53.530310 localhost.sieve > localhost.12405: . ack 49 win 2042 <nop,nop,timestamp 2504538015 2584451913> (DF)
..@.@.9 .........^0u.S.Sr.Ju...........
.H7..
.I"IMP
19:27:53.530345 localhost.12405 > localhost.sieve: P 49:51(2) ack 269 win 2048 <nop,nop,timestamp 2584451913 2504538015> (DF)
E..67.@.@...........0u.^r.Ju.S.S....ul.....
.
.I.H7.

19:27:53.530363 localhost.sieve > localhost.12405: . ack 51 win 2041 <nop,nop,timestamp 2504538015 2584451913> (DF)
E..4bh@.@..Y.........^0u.S.Sr.Jw...........
.H7..
.I
19:27:53.533810 localhost.sieve > localhost.12405: P 269:273(4) ack 51 win 2048 <nop,nop,timestamp 2504538015 2584451913> (DF)
..@.@.'..........^0u.S.Sr.Jw....&......
.H7..
.IOK
LEME
19:27:53.533832 localhost.12405 > localhost.sieve: . ack 273 win 2047 <nop,nop,timestamp 2584451913 2504538015> (DF)
./@.@...........0u.^r.Jw.S.W.....{.....
.
.I.H7.OK

19:27:53.536050 localhost.12405 > localhost.sieve: P 51:63(12) ack 273 win 2048 <nop,nop,timestamp 2584451913 2504538015> (DF)
E..@.N@.@..g........0u.^r.Jw.S.W...........
.
.I.H7.SETACTIVE ""
19:27:53.536080 localhost.sieve > localhost.12405: . ack 63 win 2046 <nop,nop,timestamp 2504538015 2584451913> (DF)
E..44.@.@..8.........^0u.S.Wr.J......p.....
.H7..
.I
19:27:53.536120 localhost.12405 > localhost.sieve: P 63:65(2) ack 273 win 2048 <nop,nop,timestamp 2584451913 2504538015> (DF)
..@.@.,.........0u.^r.J..S.W....uZ.....
.
.I.H7.

LE
19:27:53.536138 localhost.sieve > localhost.12405: . ack 65 win 2046 <nop,nop,timestamp 2504538015 2584451913> (DF)
N.@.@............^0u.S.Wr.J......n.....
.H7..
.I

19:27:53.539012 localhost.sieve > localhost.12405: P 273:277(4) ack 65 win 2048 <nop,nop,timestamp 2504538015 2584451913> (DF)
E..8.q@.@.mL.........^0u.S.Wr.J.....&
.....
.H7..
.IOK

19:27:53.539034 localhost.12405 > localhost.sieve: . ack 277 win 2047 <nop,nop,timestamp 2584451913 2504538015> (DF)
E..4..@.@...........0u.^r.J..S.[.....i.....
.
.I.H7.
19:27:53.539222 localhost.12405 > localhost.sieve: P 65:84(19) ack 277 win 2048 <nop,nop,timestamp 2584451913 2504538015> (DF)
.@.@./.........0u.^r.J..S.[...........
.
.I.H7.DELETESCRIPT "sogo"rchi
19:27:53.539243 localhost.sieve > localhost.12405: . ack 84 win 2045 <nop,nop,timestamp 2504538015 2584451913> (DF)
.,@.@.R..........^0u.S.[r.J......X.....
.H7..
.IDELE
19:27:53.539276 localhost.12405 > localhost.sieve: P 84:86(2) ack 277 win 2048 <nop,nop,timestamp 2584451913 2504538015> (DF)
E..6..@.@.k.........0u.^r.J..S.[....uA.....
.
.I.H7.

19:27:53.539293 localhost.sieve > localhost.12405: . ack 86 win 2045 <nop,nop,timestamp 2504538015 2584451913> (DF)
E..4..@.@.9..........^0u.S.[r.J......V.....
.H7..
.I
19:27:53.542392 localhost.sieve > localhost.12405: P 277:298(21) ack 86 win 2048 <nop,nop,timestamp 2504538015 2584451913> (DF)
U.@.@............^0u.S.[r.J.....E......
.H7..
.INO "No such script"
hive
19:27:53.542413 localhost.12405 > localhost.sieve: . ack 298 win 2045 <nop,nop,timestamp 2584451913 2504538015> (DF)
E..4
.@.@.1.........0u.^r.J..S.p.....A.....
.
.I.H7.
19:27:53.543235 localhost.12405 > localhost.sieve: P 86:598(512) ack 298 win 2048 <nop,nop,timestamp 2584451913 2504538015> (DF)
S"@.@...........0u.^r.J..S.p...........
.
.I.H7.PUTSCRIPT "sogo" {883+}
require ["fileinto","imapflags"];
if anyof (address :contains "to" "pub@rilk.com") {
fileinto "Junk";
addflag "Junk";
}
if anyof (address :contains ["to", "cc"] "pub@rilk.com", address :contains "from" "pub@rilk.com", header :contains "Received" "pub@rilk.com", address :contains ["to", "cc"] "pub@desktop.rilk.com") {
fileinto "Junk";
addflag "Junk";
}
if anyof (address :contains ["to", "cc"] "openet@rilk.com", address :contains "from" "openet@rilk.com", head....
19:27:53.543267 localhost.sieve > localhost.12405: . ack 598 win 1984 <nop,nop,timestamp 2504538015 2584451913> (DF)
E..4V.@.@............^0u.S.pr.L......~.....
.H7..
.I
19:27:53.543311 localhost.12405 > localhost.sieve: P 598:994(396) ack 298 win 2048 <nop,nop,timestamp 2584451913 2504538015> (DF)
Y.@.@..e........0u.^r.L..S.p.....[.....
.
.I.H7.er :contains "Received" "openet@rilk.com") {
fileinto "Junk";
addflag "Junk";
}
if anyof (address :contains "from" "projet-sofinco.com") {
fileinto "Junk";
addflag "Junk";
}
if anyof (header :contains "X-Spam-Status" "Yes") {
fileinto "Junk";
addflag "Junk";
}
if anyof (address :contains "from" "spartoo.com") {
fileinto "Junk";
addflag "Junk";
}
k";
19:27:53.543330 localhost.sieve > localhost.12405: . ack 994 win 1934 <nop,nop,timestamp 2504538015 2584451913> (DF)
..@.@............^0u.S.pr.N&.....$.....
.H7..
.Ier :
19:27:53.543364 localhost.12405 > localhost.sieve: P 994:996(2) ack 298 win 2048 <nop,nop,timestamp 2584451913 2504538015> (DF)
E..6 .@.@...........0u.^r.N&.S.p....q......
.
.I.H7.

19:27:53.543379 localhost.sieve > localhost.12405: . ack 996 win 1934 <nop,nop,timestamp 2504538015 2584451913> (DF)
E..4.5@.@.f..........^0u.S.pr.N(.....".....
.H7..
.I
19:27:53.546099 localhost.sieve > localhost.12405: P 298:2047(1749) ack 996 win 2048 <nop,nop,timestamp 2504538015 2584451913> (DF)
.5@.@............^0u.S.pr.N(....T......
.H7..
.INO {1736}
1:1: In command: Each string must be a supported sieve extension. These are not: "imapflags"
2:1: While parsing command:
2:50: While parsing block:
4:5: In command: Command unknown: addflag
2:1: While parsing command:
2:50: While parsing block:
4:5: While parsing command:
4:13: While parsing arguments:
4:13: In argument: Why is this string/list here?
6:1: While parsing command:
6:198: While parsing block:
8:5: In command: Command unknown: addflag
6:1: While parsing command:
6:198: While parsing block:
8:5: While parsing command:
8:13: While parsing arguments:
8:13: In argument: Why is this string/list here?
10:1: While parsing command:
10:152: While parsing block:
12:5: In command: Command unknown: addflag
10:1: While parsing command:
10:152: While parsing block:
12:5: While parsing command:
12:13: While parsing arguments:
12:13: In argument: Why is this string/list here?
14:1: While parsing command:
14:58: While pars....
19:27:53.546135 localhost.12405 > localhost.sieve: . ack 2047 win 1829 <nop,nop,timestamp 2584451913 2504538015> (DF)
E..4=.@.@...........0u.^r.N(.S.E...%x......
.
.I.H7.
19:27:53.547198 localhost.12405 > localhost.sieve: F 996:996(0) ack 2047 win 2048 <nop,nop,timestamp 2584451913 2504538015> (DF)
z.@.@...........0u.^r.N(.S.E....w......
.
.I.H7.NO {
19:27:53.547234 localhost.sieve > localhost.12405: . ack 997 win 2048 <nop,nop,timestamp 2504538015 2584451913> (DF)
E..4..@.@.#..........^0u.S.Er.N)....w......
.H7..
.I
19:27:53.547329 localhost.sieve > localhost.12405: F 2047:2047(0) ack 997 win 2048 <nop,nop,timestamp 2504538015 2584451913> (DF)
K.@.@............^0u.S.Er.N)....w......
.H7..
.INO {
19:27:53.547360 localhost.12405 > localhost.sieve: . ack 2048 win 2048 <nop,nop,timestamp 2584451913 2504538015> (DF)
E..40.@.@.
2........0u.^r.N).S.F....w......
.
.I.H7.

In 2.0.3 is corrected deprecated imapflags sieve flag to imap4flags.

http://www.sogo.nu/bugs/view.php?id=2082

Correct your configuration (or version) of archiveopteryx sieve to support imap4flags.

from your log:
1:1: In command: Each string must be a supported sieve extension. These are not: "imapflags"

http://archives.aox.org/archives/mailstore-users/3795/thread

Your sieve script has to be resaved in sogo. On header of script must be
require ["imap4flags"];

archiveopteryx support imap4flags since long ago. I discuss with their devs.

The error message
1:1: In command: Each string must be a supported sieve extension. These are not: "imapflags"
is send by archiveopteryx to sogo because sogo send the following sieve script
require ["fileinto","imapflags"];
if anyof (address :contains "to" "pub@rilk.com") {
fileinto "Junk";
addflag "Junk";
}
with the wrong imapflags !!!

The problem lies in the sogo code that does not correctly auto-detect which server's type uses imapflags or imap4flags. There are comments in sogo's code saying that default behavior is supposed (but not checked !)