Hello,
I'm using dovecot 2.2.9 and a director/backend setup. On the director I've the LMTP in proxy mode, mapping the users to one of the backends.
The backends to quota check and return the OverQuota message already at RCPT TO time.
Here is what I typed, connected to the director
Connection to director1 2525 port [tcp/*] succeeded!
220 director1.rz.hs-example.de Dovecot (Ubuntu) ready.
LHLO mailhub1.rz.hs-example.de
250-director1.rz.hs-example.de
250-8BITMIME
250-ENHANCEDSTATUSCODES
250 PIPELINING
MAIL FROM:<hs@schlittermann.de>
250 2.1.0 OK
RCPT TO:<heiko@hs-example.de>
250 2.1.5 OKAnd here is, what TCPDUMP sees (cut for clarity):
00:22:23.029251 IP6 2001:638:914:f33::5:1.59466 > 2001:638:914:f33::5:ff.2525: Flags [S],
00:22:23.029376 IP6 2001:638:914:f33::5:ff.2525 > 2001:638:914:f33::5:1.59466: Flags [S.],
00:22:23.029660 IP6 2001:638:914:f33::5:1.59466 > 2001:638:914:f33::5:ff.2525: Flags [.],
00:22:23.051436 IP6 2001:638:914:f33::5:ff.2525 > 2001:638:914:f33::5:1.59466: Flags [P.],
.7i`.7jN220 backend1.rz.hs-example.de Dovecot (Ubuntu) ready.
00:22:23.051805 IP6 2001:638:914:f33::5:1.59466 > 2001:638:914:f33::5:ff.2525: Flags [.],
00:22:23.052017 IP6 2001:638:914:f33::5:1.59466 > 2001:638:914:f33::5:ff.2525: Flags [P.],
.7jT.7i`LHLO director1.rz.hs-example.de
00:22:23.052034 IP6 2001:638:914:f33::5:ff.2525 > 2001:638:914:f33::5:1.59466: Flags [.],
00:22:23.052114 IP6 2001:638:914:f33::5:ff.2525 > 2001:638:914:f33::5:1.59466: Flags [P.],
.7ia.7jT250-backend1.rz.hs-example.de
250-XCLIENT ADDR PORT TTL TIMEOUT
250-8BITMIME
250-ENHANCEDSTATUSCODES
250 PIPELINING
00:22:23.052476 IP6 2001:638:914:f33::5:1.59466 > 2001:638:914:f33::5:ff.2525: Flags [P.],
0EH....d...... ..3........ ..8 ..3.........J .....
.7jT.7iaXCLIENT ADDR=2001:638:914:f33::7:1 PORT=60574 TTL=4 TIMEOUT=30
00:22:23.052540 IP6 2001:638:914:f33::5:ff.2525 > 2001:638:914:f33::5:1.59466: Flags [P.],
0EH...E....~e.....3........ ..8 ..3........ ..J
.7ia.7jT220 backend1.rz.hs-example.de Dovecot (Ubuntu) ready.
00:22:23.052815 IP6 2001:638:914:f33::5:1.59466 > 2001:638:914:f33::5:ff.2525: Flags [P.],
0E.....s...... ..3........ ..8 ..3.........J ....E
.7jT.7iaLHLO director1.rz.hs-example.de
00:22:23.052870 IP6 2001:638:914:f33::5:ff.2525 > 2001:638:914:f33::5:1.59466: Flags [P.],
0E....h....~......3........ ..8 ..3........ ..J
.7ia.7jT250-backend1.rz.hs-example.de
250-8BITMIME
250-ENHANCEDSTATUSCODES
250 PIPELINING
00:22:23.053120 IP6 2001:638:914:f33::5:1.59466 > 2001:638:914:f33::5:ff.2525: Flags [P.],
0E.....qJ..... ..3........ ..8 ..3.........J ....h
.7jT.7iaMAIL FROM:<hs@schlittermann.de>
RCPT TO:<heiko@hs-example.de>
00:22:23.091824 IP6 2001:638:914:f33::5:ff.2525 > 2001:638:914:f33::5:1.59466: Flags [.],
0E.........~,.....3........ ..8 ..3........ ..J
.7ik.7jT
00:22:23.119918 IP6 2001:638:914:f33::5:ff.2525 > 2001:638:914:f33::5:1.59466: Flags [P.],
0E.........~......3........ ..8 ..3........ ..J.7ir.7jT250 2.1.0 OK
552 5.2.2 <heiko@hs-example.de> Quota exceeded (mailbox for user is full)
00:22:23.158836 IP6 2001:638:914:f33::5:1.59466 > 2001:638:914:f33::5:ff.2525: Flags [.], 0F4....j...... ..3........ ..8 ..3.........J ..... .7jo.7ir 00:27:23.029008 IP6 2001:638:914:f33::5:1.59466 > 2001:638:914:f33::5:ff.2525: Flags [F.], 0F4....E...... ..3........ ..8 ..3.........J .....
It looks as if the backend tells the director/proxy about the full mailbox (552 5.2.2 <heiko@hs-example.de> Quota exceeded (mailbox for user is full)) already before the DATA phase starts, right as the response to the RCPT TO.
But the proxy seems to ignore it… Any suggestion?
Best regards from Dresden/Germany
Viele Grüße aus Dresden
Heiko Schlittermann-- SCHLITTERMANN.de ---------------------------- internet & unix support - Heiko Schlittermann, Dipl.-Ing. (TU) - {fon,fax}: +49.351.802998{1,3} - gnupg encrypted messages are welcome --------------- key ID: F69376CE - ! key id 7CBF764A and 972EAC9F are revoked since 2015-01 ------------ -