Here are normal settings for Hotmail: - incoming: outlook.office365.com, port 993, SSL/TLS, Oauth2 (assuming IMAP) - outgoing: smtp.office365.com, port 587, STARTTLS, Oauth2

I thank you for your effort David. Unfortunately, I am not technically proficient enough to understand what your instruction means or enact any change based on your information. I tried fishing around in Tools earlier, as someone else said go to Account Settings in Tools, select outgoing server (SMTP). So I got that far and saw nowhere "from the bottom of the list in the left panel do something or other. I failed.

I will not be able to do it without explicit direction. I never had any formal computer instruction. Where I worked we had a help desk. They didn't want us messing with settings. All I was ever formally taught was how to do email. I learned a whole lot when I had to during the pandemic, but it is not sufficient. Before the most recent Thunderbird update I always could send to Yahoo and Hotmail just fine. Something must have changed. I wish it would just change back.

Ok, let's give a try:

1. click the 'hamburger menu' in upper right. It appears as three short stacked bars)
2. click 'account settings'
3. highight the name of account of the Hotmail account on left side.
4. now, click 'server settings' on next line. Does the first line say IMAP server or POP server? You will enter the input settings I gave you here. There is a place for server name and port number - use 995 if POP and 993 if IMAP. server name is 'outlook.office365.com, and use your full email address for user name. Connection is' SSL/TLS' and authentication is OAUTH2
5. now, click account name again. at bottom of that pane is a link to SMTP server. click the button to edit SMTP server.
6. on the pane, enter simple title for Description, e.g., HOTMAIL, server name is smtp.office365.com, port is 587, connection is STARTTLS, and authentication is OAUTH2, and put full email address here. Click OK and you're done for the Hotmail account.

I am not well versed on Yahoo, but this may do for your hotmail account. Steps for yahoo will be similar. I suggest you consider stopping the automatic update, which can be done at settings>general, and scroll down to that setup location and tick to notify you but not update.

Dave, I was really hopeful this time, as the instructions were detailed. . I still bombed. Do I do this while in Thunderbird? I no longer have a hamburger menu there, i.e. the simple three lines. I think I used to. Now what I have actually looks more like a real hamburger. It has a simple top and bottom line and an oval int he middle. When I click it I get: Table view, Cards view Sort by, Hide Message List Header.

I tried it on this Mozilla page. I see my email address so I am in my account, presumably. but couldn't find the spot.

Sorry to be so uninformed. Thank you.

I should clarify, I don't have a Hotmail or Yahoo account myself. I can receive emails from people who use Hotmail and Yahoo, but I can't reply to them. I get a notice that the message sending will be re-tried for up to three days.

Ok, please start over. Please explain exactly what your problem is. For example, is it in sending messages? Receiving messages? Any error messages? If, we need to see 100% of whatever the error message states.

Here is what I get when I try to SEND an email to Hotmail or Yahoo users. I can RECEIVE from them. I hope this is useful. I really appreciate your patience. This is a Yahoo one but the Hotmail failure notice looks similar

This is the mail system at host pmg-auth-smtp1.teksavvy.com.

2. THIS IS A WARNING ONLY. YOU DO NOT NEED TO RESEND YOUR MESSAGE. #

Your message could not be delivered for more than 4 hour(s). It will be retried until it is 3 day(s) old.

For further assistance, please send mail to postmaster.

If you do so, please include this problem report. You can delete your own text from the attached returned message.

                  The mail system

<dgerlitz2004@yahoo.ca>: host mta6.am0.yahoodns.net[67.195.228.110] said: 421

   4.7.0 [TSS04] Messages from 76.10.175.139 temporarily deferred due to
   unexpected volume or user complaints - 4.16.55.1; see
   https://postmaster.yahooinc.com/error-codes (in reply to MAIL FROM command)

Reporting-MTA: dns; pmg-auth-smtp1.teksavvy.com X-Proxmox-Queue-ID: 6830C8C2B71 X-Proxmox-Sender: rfc822; carolynn@teksavvy.com Arrival-Date: Tue, 10 Dec 2024 08:21:14 -0500 (EST)

Final-Recipient: rfc822; dgerlitz2004@yahoo.ca Original-Recipient: rfc822;dgerlitz2004@yahoo.ca Action: delayed Status: 4.7.0 Remote-MTA: dns; mta6.am0.yahoodns.net Diagnostic-Code: smtp; 421 4.7.0 [TSS04] Messages from 76.10.175.139

   temporarily deferred due to unexpected volume or user complaints -
   4.16.55.1; see https://postmaster.yahooinc.com/error-codes

Will-Retry-Until: Fri, 13 Dec 2024 08:21:14 -0500 (EST)

Return-Path: <carolynn@teksavvy.com> Received: from pmg-auth-smtp1.teksavvy.com (localhost.localdomain [127.0.0.1]) by pmg-auth-smtp1.teksavvy.com (Proxmox) with ESMTP id 6830C8C2B71 for <dgerlitz2004@yahoo.ca>; Tue, 10 Dec 2024 08:21:14 -0500 (EST) Received: from [192.168.2.190] (75-119-251-99.dsl.teksavvy.com [75.119.251.99]) by pmg-auth-smtp1.teksavvy.com (Proxmox) with ESMTPSA for <dgerlitz2004@yahoo.ca>; Tue, 10 Dec 2024 08:21:13 -0500 (EST) Content-Type: multipart/alternative;

boundary="------------Av327F0iKRbSQQh0AMU5YDq5"

Message-ID: <feb0879f-e884-4f5a-a9b0-2c1db02dd717@teksavvy.com> Date: Tue, 10 Dec 2024 08:21:05 -0500 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: Test using Thunderbird client. rather than reply to your email to

me and the Hums

To: Don Gerlitz <dgerlitz2004@yahoo.ca> References: <2b281e27-d15e-4f5d-bef0-ac62bd452ad3@teksavvy.com>

<1636495337.1329653.1733836089329@mail.yahoo.com>

Content-Language: en-US From: Carolynn <carolynn@teksavvy.com> Autocrypt: addr=carolynn@teksavvy.com; keydata=

xjMEZ0DJhxYJKwYBBAHaRw8BAQdAgKvtg6e20uTUKr8aYDmkzeZN1RBcnwpZLhgEaFGJGIbN
IENhcm9seW5uIDxjYXJvbHlubkB0ZWtzYXZ2eS5jb20+wo8EExYIADcWIQT0gBXMt0FzkafV
1+ROiD+MQXj3BwUCZ0DJhwUJB4TOAAIbAwQLCQgHBRUICQoLBRYCAwEAAAoJEE6IP4xBePcH
W5sA/1VEvIJM5wXxXp9u18fkKiVjH+d9zqUnb2hZ7NylZO6kAP993WAIgqwIhceWJ9O8XHQu
d3Nt+6DqDw3uJQJ7s+0wDM44BGdAyYgSCisGAQQBl1UBBQEBB0Awj3+oHvrB0FxTCfAIsBbh
pzjpwfnR3Rz0QYRudl3dIQMBCAfCfgQYFggAJhYhBPSAFcy3QXORp9XX5E6IP4xBePcHBQJn
QMmIBQkHhM4AAhsMAAoJEE6IP4xBePcHMAIBANcmE5leMn/vu2NJDF+3+43mKXHUqnnkD27e
meW+5nHSAQDLjW7ohywWl3lbk/7HWzsMlYPPMM5/cZRBQa/kbgRZAg==

In-Reply-To: <1636495337.1329653.1733836089329@mail.yahoo.com>

It appears that Yahoo is delaying delivery of your messages due to potential security issues from your IP address. The error messages point to https://senders.yahooinc.com/smtp-error-codes/ with error code 421, and suggests this be pursued with your email provider, which I think is teksavvy.com.

Thank you. My husband expected I may have been hacked. He thought I had way too many "processes" running than is likely for a retired person like me who now just does language learning and email.

I have spoken with Teksavvy once. I'll call them again and relay your helpful details. The agent I spoke to just said as long as my webmail version is OK, she wasn't going to do anything else. I can send to Yahoo and Hotmail if I use webmail rather than the Thunderbird email client.

Happy Holidays, Dave. You have been a great help.

You're welcome, but don't give up. That URL I sent listed possible shortcomings with email providers, and we routinely have users posting that their email provider has not helped. If you have friends with gmail.com addresses, that is also a possible check, as Gmail is rather strict on what mail it accepts. Good luck.

My second approach to Teksavvy.com was more satisfactory. It turned out they are aware of the issue. They have "reached out" to both Yahoo and Hotmail to ask that it be resolved, and have not as yet had a response.  ????

David, I very much appreciated your support. Having the right language (I read off your last message to the agent) really helped. Oh, and I am sorry I Dave-ed you by mistake, David.  :>)

Forgiven. Next time, twenty pushups. :)

I'm a 75 year old woman. I MIGHT be good for ten, so I better mind my p's and q's and especially my d's