Unable to write the email to the mailbox

I think this issue has been flagged before and was maybe supposed to have been fixed by an update, but that is not my experience. We have 3 family gmail accounts that dow… (read more)

I think this issue has been flagged before and was maybe supposed to have been fixed by an update, but that is not my experience. We have 3 family gmail accounts that download into our local computer Thunderbird app (Windows 10). 2 of these accounts function normally, but since 24 Sep one account shows the error 'Unable to write the email to the mailbox. Make sure the file system allows write privileges and you have enough disk space to copy the mailbox.' No emails have downloaded from gmail for that account since that date. The computer disk is less than half full, so it should not be a space issue. As far as I can see all accounts are set up identically with all system permissions, notably write, showing 'allow'.

How do I resolve this issue ?

Asked by Pedro 6 days ago

Error Message-can not send email due to STARTTLS?

9/10/2025 After trying to send an email I got the following message. Repeatedly. Called Sitestar's tech support and they tried to fix the issue. Here is the first error … (read more)

9/10/2025 After trying to send an email I got the following message. Repeatedly. Called Sitestar's tech support and they tried to fix the issue. Here is the first error message.

Sending of the message failed.

An error occurred while sending mail: Unable to establish a secure link with Outgoing server (SMTP) mail.sitestar.net using STARTTLS since it doesn't advertise that feature. Switch off STARTTLS for that server or contact your service provider.

Sitestar Tech support had me go to account settings, to outgoing server to edit and change the STARTTLS to SSL/TS port and retry sending the test email. Then got this error message:

Sending of the message failed. An error occurred while sending mail. The mail server responded: H:RB [172.56.209.199] Connection refused due to abuse. Please contact your E-mail provider.. Please verify that your email address is correct in your account settings and try again.

Went back to set up and original error message still shows up and email can not be sent. Any ideas how to fix this. I can still send email thru the sitestar website, but not from my laptop. I think I used up all the Site star tech supports brain cells. I use the latest thunderbird. We connect to the internet via a T-mobile tower thing. Windows 11 Thank you

Asked by Sunflowr 3 weeks ago

Last reply by Sunflowr 6 days ago