As an workaround, publish the InfoPath form to a SharePoint document library and then create a custom workflow in SharePoint Designer that sends an email with the content of the form to a specified email address.
Here is a similar issue post for your reference:
Whether you set the submit option to send email with the form as attachment after submitting?
If that's the case, the form in the email will show display name as the form when editing in InfoPath.
As a workaround, I suggest you publishing the drop down field to list as a column, then use workflow in SharePoint Designer and "Send an email" action, then ...
AFAIK, No, there is no OOTB approach to remove the "Submitted by" tag from the emails. It is by design. The only available work around we have got is mentioned in the link which you have mentioned in your question.
Try to make this changes SPWebapplication.FormDigestSettings.Enabled = false to turn off the digest setting property for the web application?
The root cause of this issue and solutions are as below:
The above error will be thrown at the time of updating Library or Lists items due to authentication problem, or We didn’t have the rights to update the items.
As far as SharePoint content database migration is concerned using the detach and attach method it will migrate everything - all designer workflows along with infopath forms. And we can not migrate directly from SharePoint 2010 to 2019. The sequence is 2010->2013->2016 ->2019
Few key points to remember:
Complete all running workflows in SharePoint 2010 ...
Using the below PowerShell script, we can get all infopath forms from a particular web application and this report will be exported to a csv file.
[System.Reflection.Assembly]::LoadWithPartialName("Microsoft.SharePoint") > $null
return new-Object Microsoft.SharePoint.SPSite($url)
#Get the web application
If you don't need to restore the archived data (list items) in SharePoint and need archiving purely to comply company's data retention or other compliancy policy look at the 3-rd party tool called Listman.io.
Depending on your requirements it could auto archive list items once per day based on some filtering criteria, download attachments, delete/modify ...