The message cannot be sent to all selected recipients. When running a workflow / process in Microsoft CRM, you receive a message that looks like this: The e-mail address for one or more recipients is either blank or not a valid e-mail address The Cause This error message is a little misleading as it points to an email address problem. As the title of the error suggests, the problem could be from: 1. A blank email address. 2. An email address with an error, such as a “.” at the end of it: firstname.lastname@example.org. 3. The more likely one is that the contact or account record associated with the flow has a setting to E-mail Do Not Allow. This setting will prevent any workflows in CRM from running and sending email messages. The Solution The fix is easy… just change the setting back to allow. Then save the associated record.… Read More »The e-mail address for one or more recipients is either blank or not a valid e-mail address
MS CRM The length of the 'messageid' attribute of the 'email' entity exceeded the maximum allowed length of '100'.
I had noticed that this error was logging in the Application log of our CRM server very often. #9628 – An error occurred while delivering the e-mail message with subject "FW: Undeliverable: Read: " in mailbox email@example.com for delivery to http://localhost/CRM. System.Web.Services.Protocols.SoapException: Server was unable to process request. at System.Web.Services.Protocols.SoapHttpClientProtocol.ReadResponse(SoapClientMessage message, WebResponse response, Stream responseStream, Boolean asyncCall) at System.Web.Services.Protocols.SoapHttpClientProtocol.Invoke(String methodName, Object parameters) at Microsoft.Crm.Sdk.Proxy.CrmService.Execute(Request Request) at Microsoft.Crm.Tools.Email.Providers.CrmPollingMailboxProvider.DeliverMessageInternal(EmailMessage emailMessage) at Microsoft.Crm.Tools.Email.Providers.ExchangePollingMailboxProvider.DeliverMessageInternal(EmailMessage emailMessage) at Microsoft.Crm.Tools.Email.Providers.CrmPollingMailboxProvider.DeliverMessage(EmailMessage emailMessage) at Microsoft.Crm.Tools.Email.Providers.CrmPollingMailboxProvider.Run()rn 0x80044331 A validation error occurred. The length of the ‘messageid’ attribute of the ’email’ entity exceeded the maximum allowed length of ‘100’. Platform The solution was to customize the Email Entity. The Email Entity Attributes: messageID Change the Message Maximum Length to 250 Save and Close Then Publish Although this fix will not track all messages of any length, it will help.