disable: lmtp_save_to_detail_mailbox = no recipient_delimiter = +

# When recipient address includes the detail (e.g. user+detail), try to save

# the mail to the detail mailbox. See also recipient_delimiter and

# lda_mailbox_autocreate settings.

lmtp_save_to_detail_mailbox = no

recipient_delimiter = +

# it was enabled in case it don work enable it again lmtp_save_to_detail_mailbox = no and recipient_delimiter = +

#lmtp_save_to_detail_mailbox = no

#recipient_delimiter = +

# Verify quota before replying to RCPT TO. This adds a small overhead.

#lmtp_rcpt_check_quota = no