Develop Reference

EWS some emails are missing internet message headers

I am working on a windows service that reads the inbox, archives the emails, couples the email to a ticket and put it in the database.
My problem is that we check the internetmessageheaders to see if an email is auto-submitted. But now we get an error message logged to the database every 5 seconds because the internet message headers is null.
for context the inbox is empty and it has worked before.
I did some testing and it worked fine except for 1 email i got in my test mail. It has the email headers that looks like the headers of a sent email and just like a sent email i can't get the internetmessageheaders.
Now i am left wondering if i can get the internetmessageheaders from that email or if i have to build a workaround because internetmessageheaders aren't supposed to be null on an received email

Email Auto-Replies not going to Reply-To Address

I have a web app that sends emails via smtp on behalf of the user to their customers. I am able to put the user's email in the reply-to of the email and this works for normal email use for the users. In the case the recipient has an auto-responder or the email entered was incorrect email, the auto replies go to the sender not the reply-to. The sender inbox is unmonitored.
The sender email service is using and Office365 account.
What are my options to get the auto replies and returned emails to the reply-to email?

This may be because the autoresponders don't regard their messages as replies, but rather as messages from the email system itself.
Your mail has three or four addresses related to the sender, which generally show up at the recipient as Return-Path, Sender, From and Reply-To. Return-Path is who should get error messages and other messages from the email system itself, Sender and From are the address that should be displayed as having sent the mail and Reply-To is the address to which the addressee's replies should be directed. (Sender and From are only very rarely different these days, but historically Sender might be e.g. a particular member of a team while From is the team's shared address.)
Many autoresponders respond to the address that shows up as Return-Path in the final message (it's also called the envelope from address), so your options are:
use the user's address as envelope from
set up a forwarding scheme so that autoresponses are suitably forwarded
The first is very tricky wrt. DKIM, DMARC etc, so you'll probably find the second one simpler, even though it requires you to filter spam and perhaps more.

Sending mail from website in ASP.NET

I coded a website contact form with mail send and after dozens of research cannot find an answer hoping stackoverflow users can help.
The aspx.cs file signs into the specified gmail configuration to send the email HOWEVER is there a way to set the SENDER as what the user inputs in the email textbox, so instead of recieving the email from myself so when clicking "Reply" on the mailbox its not replying to myself? If that makes sense?
So the sender is not me but the sender is what the user inputs in the mail box and I receive the email FROM the input value rather than myself

From comments:
This is the solution:
set mail.From = new MailAddress(address, display name)
in Gmail, go to Mail Settings >> Accounts and Import.
Add the email account you will use as sender in "Send Mail As". (tick
as Alias)
This is the only way gmail will let you specify the from address.

Setting the From Address requires special configuration/confirmation in Gmail for each From Address (see here), or is otherwise prohibited.
You could create a generic gmail address such as no-reply-yourapp#gmail.com. Then use the ReplyToList property to set the default Reply To email address that the user will use for their reply, to the user input email address, as well as an appropriate Display Name for the sender.

So in theory, for flexibilty use different mail service such as web host provided or outlook etc and set the mail.FROM to the value from the textbox and it will be sent from the address the user has typed? Gmail being extra secure causes confusion. Got it. Thanks guys

C# create a new exchange email with properties like deliverydate

I'm looking for exchange email creation for a migration lotus to exchange platform.
I can create email body with Body property of an EmailMessage Object, but I can only Get DateTimeCreated property and not set it.
What I want, is to get my lotus email, convert it to exchange format with all properties, and save it to my exchange server.
regards

Exchange Web Services API Linking emails in a conversation?

I'd like to be able to log a unique id from an email with a delivery receipt in a database that i can then use to link the delivery receipt email when it comes back from the recipient. I tried using the Thread-Index Internet Message Header, but I don't have access to the message headers when I initially send the email.
Is it possibe to
1. create an email.
2. add a delivery receipt
3. use a unique id from that email and store it in a database
4. search for that unique id in the delivery receipt message when it arrives.