Hi,

In Laserfiche Forms, using Workflow task i am sending mails with attachments to multiple users, most of the time i am getting the following error and workflow getting terminated.

1/18/2017 9:43:36 AMEmail Iniatiator
(_EmailWithAttachments)Service not available, closing transmission channel. The server response was: 4.4.2 Message submission rate for this client has exceeded the configured limit

This error occurs for some of the users email ID when using multiple email activities happened at the same time, I guess that this error from mail server. Suggest me any ideas to resolve this. Thanks in advance.