Hello, Is there any reason why dovecot relies on S= instead of real disk size email takes? 1) compressed mails take less than than the S= specified 2) we could avoid using "S=" for the lookups and count every file there, including indexes and mails without S=... if we'd read filesizes Eample: # ls -l '1567026317.M331058P4751.testing.server.com,S=3086,W=3148:2,S' -rw------- 1 dev mail 1274 Aug 29 00:05 1567026317.M331058P4751.testing.server.com,S=3086,W=3148:2,S Proposed patch (solves #1, not sure about your opinion on #2): --- src/plugins/quota/quota-maildir.c.orig 2020-02-05 19:21:08.582998417 -0700 +++ src/plugins/quota/quota-maildir.c 2020-02-05 19:21:22.184998798 -0700 @@ -84,7 +84,7 @@ p = strstr(dp->d_name, ",S="); num = (uoff_t)-1; - if (p != NULL) { + if (0 && p != NULL) { /* ,S=nnnn[:,] */ p += 3; for (num = 0; *p >= '0' && *p <= '9'; p++) @@ -104,7 +104,7 @@ str_truncate(path, len); str_append(path, dp->d_name); if (stat(str_c(path), &st) == 0) { - *total_bytes += st.st_size; + *total_bytes += st.st_blocks * 512; *total_count += 1; } else if (errno != ENOENT && errno != ESTALE) { *error_r = t_strdup_printf( Thank you! -- Best regards, Martynas Bendorius