UUncategorized How to Increase Exim4 Logging Information byJordanJune 16, 20201 minute read This is pretty simple to do, the syntax is as follows. Plain Text log_selector = +address_rewrite +all_parents +arguments +connection_reject +delay_delivery +delivery_size +dnslist_defer +incoming_interface +incoming_port +lost_incoming_connection +queue_run +received_sender +received_recipients +retry_defer +sender_on_delivery +size_reject +skip_delivery +smtp_confirmation +smtp_connection +smtp_protocol_error +smtp_syntax_error +subject +tls_cipher +tls_peerdn However, depending on your OS, you will need to add this line to /etc/exim.conf or if you’re running cPanel you can follow these instructions. https://www.limestonenetworks.com/support/knowledge-center/1/62/how_do_i_configure_exim_for_better_logging.html