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I regularly get the following message when attempting to send an email :- "Sending of the message failed. The message was not sent due to exceeding the allowed number of recipients. The server responded: Policy-SC01 You’ve reached your sending limit. Don’t worry, you can send again soon.." This message implies that I am attempting to send a message with multiple recipients, BUT it only happens when I am sending to only ONE recipient. Why is this, and how do I eliminate this very annoying restriction. I currently cannot send an email because this problem is preventing me from doing so. Thunderbird has been a useful email client for many years, but these frustrations are not helping me to remain with Firebird. Regards, PD

You guys did an update that now makes me choose a profile every time I log in. WHY? Keep it simple. I tried to go into Profile and keep it simple. Can you tell me how to go back to reset the old way?

Sometimes, you should leave well enough alone. Right????? HMMMMM???

All I want to do is open Firefox and go to my default page. Okay?

I will wait for your response.

Hi! In one of the updates they added built in VPN but i sorta cant find it, is it just feature for select people atm that will roll out fully or? I looked in my settings and stuff i can only find the vpn subsription

Send Message Error "Sending of mmessage failed. An error occured while sending mail: Outgoing server SMTP error. The server responded [192.1680.166] Helo command rejected: IP address 204.237.106.179 Blocked due to Abusive Authentication Behavior."

Problem recently developed. So far on 2 different addresses but could be more. Additional info, hotmail and gmail accounts sending work OK; xplornet.com account is the problem interface but the C/Svc folks say it's a Thunderbird mail issue.

I've recently switched to Firefox but am finding some of the performance a bit cumbersome. I am continually being asked to hit "Send" ["To display this page, Firefox must send information ..."] when I am logging into my Outlook email or looking at my bank information. I'd rather not be "resending" these pages each time and am wondering if there is a setting.

Edition Windows 11 Pro Version 25H2 Installed on 2025-12-10 OS build 26200.8246 Serial number YX0J28CC Experience Windows Feature Experience Pack 1000.26100.297.0

Thanks, Nancy

I have Thunderbird mail access on my work place, with 1000 mail and 300 send mail its very important recorded for my usage but disk space is full however i have to could not send any mail it show mail full

Dear Mozilla team,

I hope this finds you well.

I cannot seem to find the in-built VPN for Firefox. Is it a regional rollout? I am currently in Lebanon. Thank you. Kind regards,

Zaki

Whenever I create a new folder in one of my accounts, the new folder appears listed under my Unified Inbox instead of being listed under the account. It is super annoying, and then to correct it, I need to open Unified Inbox properties and uncheck it from the folder list. I only want Inboxes to appear in my Unified Inbox. How do I stop this from happening? Thanks

Goodmorning,

I have been using thunderbird for years now and I love it it keeps my accounts all together and I like that. however, I am trying to set up a new email account gamingconsole360@outlook.com and I keep getting an authentication error I am trying to set it up as a pop3 account but I get stopped before I get that far some sort of authenticaten error. I tried manual setup and this is what I see in the hostname box .outlook.com and it says under it Hostname empty or invalid. Only letters, numbers, - and . are allowed Please help

This happens erratically, not every time. Annoying when trying to select a message to delete and the one before or after or both also deletes at same time. Now I have to go and retrieve it back to inbox. Checked in settings and cant find a solution. Also looked in pad and mouse settings to no avail. Seems to have started in last 2 or 3 months, can't be specific of time line.