Email Message-ID while sending email (Outlook online mode) RRS feed

  • Question

  • Hello,

    I am looking for a way to get email Message-ID while sending an email (using VSTO outlook plugin) and that Message-ID should retain at recipient side as well. 

    With outlook online mode, If I try using EWSManaged API then I get message-Id but that is not getting maintained at recipient end. With cache mode I am not getting which looks expected however, with online mode if we are getting then why it's not getting maintained and is there a way we can do it forcefully.

    I see very slight difference between both the message ID.

    While sending email - <>

    At recipient end -        <>

    Appreciate your help. 



    Monday, March 11, 2019 5:42 PM

All replies

  • Hello Manoj,

    Does the sent item (placed to the Sent Items folder after submitting) contain the same message ID with the recipient's side one?

    profile for Eugene Astafiev at Stack Overflow, Q&A for professional and enthusiast programmers

    Wednesday, March 13, 2019 7:01 PM
  • Hi Eugene,

    Thanks for your response. 

    Yes message-id is same with sent items folder email and at recipient end only difference is while sending email. Please see below. 

    MessageID while sending email - using EWS Managed API

    While opening same email fetched using EWS Managed API

    At attendee side and checked from my Inbox (added my self as attendee



    Thursday, March 14, 2019 5:03 PM