1. You are viewing our forum as a guest. For full access please Register. WindowsBBS.com is completely free, paid for by advertisers and donations.

Resolved Sender rejected server error in Outlook

Discussion in 'Windows 10' started by SCFrance, 2024/11/04.

  1. 2024/11/04
    SCFrance

    SCFrance Well-Known Member Thread Starter

    Joined:
    2006/09/23
    Messages:
    102
    Likes Received:
    4
    I'm getting "The server responded: 550 5.1.0 <> sender rejected. The email you are sending as must match the email address you used to auth. Please check your SMTP settings." from Outlook every time I open it. There is nothing in the outbox and I have successfully sent and received messages.
    Using W10, Outlook® for Microsoft 365 MSO (Version 2410 Build 16.0.18129.20100) 32-bit.
    Ideas?
     
    SCFrance,
    #1
  2. 2024/11/04
    Bill

    Bill SuperGeek WindowsBBS Team Member

    Joined:
    2002/01/11
    Messages:
    3,371
    Likes Received:
    412
    It seems others have had similar experiences when their ISP changes how things work on their side.

    See Francis Francese's post here.
     
    Bill,
    #2


  3. to hide this advert.

  4. 2024/11/06
    SCFrance

    SCFrance Well-Known Member Thread Starter

    Joined:
    2006/09/23
    Messages:
    102
    Likes Received:
    4
    Thanks, Bill, but Francis' fix didn't work for me. I can send and receive OK, so I'm not going to waste brain cells on this. Lord knows I have presious few left as it is.
     
    SCFrance,
    #3

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Accept Learn More...