JIRA's services take a handler.params string, which is a comma-separated list of parameters, eg: project=JRA, issuetype=1, catchemail=www.atlassian.com It is easy to get this wrong and leave out a comma: project=JRA, issuetype=1 catchemail=www.atlassian.com In this case, the issue type for issues created via email will be "1 catchemail=www.atlassian.com", which breaks many things (the status icon, the edit page, and notification emails for a start). JIRA's code for parsing handler.params should either treat space as a delimiter, or have some error checking for cases like this.