ls -al ~spam/Mail ~spam/Mail/{new,cur}
/home/spam/Mail:
total 116
drwxrws--- 5 spam mailperso  4096 Oct 17 23:09 .
drwxr-xr-x 3 spam spam       4096 Jan 19  2014 ..
drwxrws--- 2 spam mailperso 36864 Oct 17 23:07 cur
-rw-rw---- 1 spam mailperso  1672 Oct 15 09:23 dovecot.index
-rw-rw---- 1 spam mailperso 19456 Oct 16 16:25 dovecot.index.cache
-rw-rw---- 1 spam mailperso 23040 Oct 17 23:09 dovecot.index.log
-rw-rw---- 1 spam mailperso  7465 Oct 17 11:25 dovecot-uidlist
-rw-rw---- 1 spam mailperso     8 Jan 22  2014 dovecot-uidvalidity
-r--rw-r-- 1 spam mailperso     0 Jan 22  2014 dovecot-uidvalidity.52df06f3
drwxrws--- 2 spam mailperso  4096 Oct 17 11:25 new
drwxrws--- 2 spam mailperso  4096 Oct 17 11:17 tmp

/home/spam/Mail/cur:
total 3504
drwxrws--- 2 spam mailperso  36864 Oct 17 23:07 .
drwxrws--- 5 spam mailperso   4096 Oct 17 23:09 ..
-rw-rw---- 1 spam mailperso   1364 Jan 22  2014 1390354999.V904I98006dM169304.smtp.desfontain.es:2,S
-rw-rw---- 1 spam mailperso   1507 Jan 23  2014 1390502864.V904I980072M899265.smtp.desfontain.es:2,S
-rw-rw---- 1 spam mailperso   2410 Jan 28  2014 1390920400.V904I980073M215905.smtp.desfontain.es:2,S
-rw-rw---- 1 spam mailperso   4229 Jan 29  2014 1390998062.V904I98000cM209986.smtp.desfontain.es:2,S
-rw-rw---- 1 spam mailperso   3365 Feb  4  2014 1391472336.V904I980010M238010.smtp.desfontain.es:2,S
-rw-rw---- 1 spam mailperso  20071 Feb  6  2014 1391687614.V904I980013M998228.smtp.desfontain.es:2,S
[... Tons of e-mails with the same permissions]
-rw-rw---- 1 spam mailperso   2066 Oct  7 22:08 1412712494.V904I98005aM191863.ikura:2,S
-rw-rw---- 1 spam mailperso  12962 Oct  8 09:21 1412752902.V904I98005bM715740.ikura:2,FS
-rw-rw---- 1 spam mailperso  16472 Oct  8 09:24 1412753070.V904I98005cM927391.ikura:2,RS
-rw-rw---- 1 spam mailperso   3931 Oct  8 20:03 1412791391.V904I980055M989438.ikura:2,S
-rw-rw---- 1 spam mailperso   5365 Oct  9 11:43 1412847801.V904I98005dM14942.ikura:2,S
-rw-rw---- 1 spam mailperso   1368 Oct 11 10:18 1413015511.V904I98005eM68058.ikura:2,S
-rw-rw---- 1 spam mailperso   1191 Oct 11 10:21 1413015703.V904I98005fM691868.ikura:2,S
-rw------- 1 spam mailperso  22966 Oct 13 14:24 1413203042.V904I98006fM519663.ikura:2,S
-rw------- 1 spam mailperso   1407 Oct 14 23:14 1413321254.V904I980016M18256.ikura:2,S
-rw------- 1 spam mailperso   3388 Oct 15 11:58 1413367102.V904I980029M32444.ikura:2,RS
-rw------- 1 spam mailperso   5776 Oct 15 23:38 1413409135.V904I980019M819757.ikura:2,S
-rw------- 1 spam mailperso  11316 Oct 16 06:45 1413434707.V904I980057M70849.ikura:2,S
-rw------- 1 spam mailperso   9733 Oct 16 15:03 1413464586.V904I980065M421462.ikura:2,FS

/home/spam/Mail/new:
total 8
drwxrws--- 2 spam mailperso 4096 Oct 17 11:25 .
drwxrws--- 5 spam mailperso 4096 Oct 17 23:09 ..