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Unable to send calendar invitation with image signature RRS feed

  • Question

  • I'm facing this issue whereby calendar invitation sent on Outlook 2016 with image signature fail to deliver. On some Outlook 2013, the calendar was sent successfully but same error '550 4.4.7' was showing.

    I've tried to attach the image as link to file while creating the signature, it's still showing the same.

    Please assist.

    Thank you.

    Tuesday, October 18, 2016 3:15 AM

All replies

  • Can you please tell us something about the Anti Spam setting ?

    https://support.office.com/en-us/article/Fix-email-delivery-issues-for-error-code-4-4-7-in-Office-365-2fda59a8-84f8-4eb0-96e1-49187fbe7ff9

    You can have a look into the above url, if it may help.

    Your signature in which type of image file ?


    Mihir Nayak If a post is helpful, please take a second to vote


    Tuesday, October 18, 2016 5:34 AM
  • The anti spam settings was left at default, nothing was added to the spam list.

    Signature is is created in Word 2016, with the picture attached as link to file option. It was then copied to Outlook.

    Tuesday, October 18, 2016 6:45 AM
  • Ohh That might be the reason why it is creating this issue.

    Is it possible to use a JPG instead ? Just try and let me know the result please.


    Mihir Nayak If a post is helpful, please take a second to vote

    Tuesday, October 18, 2016 10:53 AM
  • The anti spam settings was left at default, nothing was added to the spam list.

    Signature is is created in Word 2016, with the picture attached as link to file option. It was then copied to Outlook.

    Hi,

    Try to create the same signature in Outlook, not copy from Word to Outlook.

    https://support.office.com/en-us/article/Create-and-add-a-signature-to-messages-8ee5d4f4-68fd-464a-a1c1-0e1c80bb27f2

    And does this issue occur on when users send normal messages with signature to other users?


    Regards,

    Lynn-Li

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    Wednesday, October 19, 2016 2:01 AM
  • same error when sending with jpg image.

    it only happens to Calendar invitation.

    Thursday, October 20, 2016 2:28 AM
  • Same issue happen when creating from outlook.

    This issue only happen to calendar invitation, normal email working perfectly.

    Thursday, October 20, 2016 2:28 AM
  • is it happening for all mailboxes ? if not, then it is a specific issue with this mailbox

    Mihir Nayak If a post is helpful, please take a second to vote

    Thursday, October 20, 2016 6:46 AM
  • it's happening on all mailbox when user sends meeting invites with image signature.
    Wednesday, October 26, 2016 4:43 AM