Emails are sent by dspace-api:org.dspace.core.Email. It only writes to the log if sending is disabled (so that you can see the message that would have been sent, if it were enabled).
If you have access to the logs of the message transfer agent (sendmail, exim, postfix, whatever) then you should be able to find log entries for each message sent, but it will be logging only what is important to email administrators. What are you trying to discover? -- You received this message because you are subscribed to the Google Groups "DSpace Developers" group. To unsubscribe from this group and stop receiving emails from it, send an email to dspace-devel+unsubscr...@googlegroups.com. To post to this group, send email to dspace-devel@googlegroups.com. Visit this group at https://groups.google.com/group/dspace-devel. For more options, visit https://groups.google.com/d/optout.
