Hi,
how do you come to set message_size_limit = 0? I'd suggest to comment it out for the default of 10240000. Or set something reasonable for your environment. Or switch chunking off: http://www.postfix.org/BDAT_README.html >> downgrading to 3.3.2 fixed the issue.As i know, chunking came with PF 3.4. Willi >> >> i found the responsible code in postfix-3.4.1/src/smtpd/smtpd.c >> commenting out that check also fixes the issue. >> >> /* Block too large chunks. */ >> if (state->act_size > var_message_limit - chunk_size) { > > after some more reading of code, > it turns out that this usage of `var_message_limit` is missing the check > of `var_message_limit > 0` that in other places enables `0` to mean > "no limit", and thus it enforces a limit of 0 with my config :( > >> state->error_mask |= MAIL_ERROR_POLICY; >> msg_warn("%s: BDAT request from %s exceeds message size >> limit", state->queue_id ? state->queue_id : "NOQUEUE", >> state->namaddr); >> return skip_bdat(state, chunk_size, final_chunk, >> "552 5.3.4 Chunk exceeds message size >> limit"); } > > - T. >
