I have anonymous website made on SharePoint 2013, there one of the list where anonymous user can add item then I have make SharePoint 2010 workflow to send email. But it stuck on "In Progress". On the same time another workflow works nicely with out any error.
After comparing both workflow I found that first work is sending email to external email id's and second workflow sending email within corporation. So that is the reason second workflow working.
Now Kindly help me that how can I send email to external email from SharePoint 2010 Workflow from SharePoint 2013