OUTLOOK ERROR MESSAGE WHEN SENDING EMAIL

Thank you, Sherwin!

The question I would have is: why would my personal email account suddenly be blocked?

This afternoon I tried sending test emails to myself at my business email address (*** Email address is removed for privacy ***), and a few others at different domains, and ALL of them were undelivered with the same error message.

What could have happened to cause this?

Thank you, Sherwin. Your help is much appreciated.

I was engaged in an outline chat with the Support people at Spectrum today, and they were most unhelpful. Eventually they simply told me this was not their problem, that it was a Microsoft problem, and that I should contact Microsoft for help. *Click*

So, what does one do now?

Hi! Thanks so much for your response. I don't use AVG or Avast, but I do use McAfee.

This problem only cropped up yesterday afternoon out of the blue - before that things had worked just fine for at least the past year. I have not done any Microsoft updates or changed any email settings, server synch settings, etc. In fact, all my settings are exactly what Spectrum requires when using Outlook.

I access two email accounts using Outlook. The one account is for my personal, private (Spectrum) email, and the other is a work email account (andre.at.eecpetoskey.org). This problem is only happening with my Spectrum account - the work email works just fine. I am also experiencing the problem with both my office and home computers.

So, with that additional information, is there anything else you can suggest?

So, with that additional information, is there anything else you can suggest?

In your other thread (which I would have merged with this one had it not been locked by an Independent Advisor), you write "My outgoing mail port is 587, Encryption method is SSL/TLS, and there are NO check marks next to 'Require logon using SPA' or 'My outgoing (SMTP) server requires authentication."

If you use port 587, then you must also select My outgoing (SMTP) server requires authentication. This might well be the cause of the unusual error (O-1420) that you're seeing. Make that change, then send a new test message (with a unique subject) to the same (Spectrum) account. Quote any new error message in your reply.

Thank you for this. I did as you instructed, and received a test email from Microsoft with this message: "This is an email message sent automatically by Microsoft Outlook while testing the settings for your account."

However, I also received this message...again:

Your message did not reach some or all of the intended recipients.

      Subject:     TEST

      Sent:  12/11/2019 9:14 PM

The following recipient(s) cannot be reached:

      Andre Strydom on 12/11/2019 9:14 PM

            552 5.2.0 <*** Email address is removed for privacy ***> sender rejected. AUP#O-1420