Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Avatar for Username

ابحث في الدعم

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

This thread was archived. Please ask a new question if you need help.

Cannot send messages from multiple accounts

  • 5 ردود
  • 2 have this problem
  • 1 view
  • آخر ردّ كتبه rhumpherson

rhumpherson
rhumpherson
more options

I have 9 accounts using 5 different servers. All were working fine until recently. Now when I attempt to send from any account I get the message; "The message could not be sent because connecting to Outgoing server (SMTP) mail.optusnet.com.au failed. The server may be unavailable or is refusing SMTP connections. Please verify that your Outgoing server (SMTP) settings are correct and try again." I have tried disabling firewall and virus. Sending using the same SMPT settings on Blue Mail works fine. OS is Windows 11 64bit Thunderbird 91.10 Tyoical outgoing settins attached.

I have 9 accounts using 5 different servers. All were working fine until recently. Now when I attempt to send from any account I get the message; "The message could not be sent because connecting to Outgoing server (SMTP) mail.optusnet.com.au failed. The server may be unavailable or is refusing SMTP connections. Please verify that your Outgoing server (SMTP) settings are correct and try again." I have tried disabling firewall and virus. Sending using the same SMPT settings on Blue Mail works fine. OS is Windows 11 64bit Thunderbird 91.10 Tyoical outgoing settins attached.
Attached screenshots

الحل المُختار

The 9 accounts use 3 different servers. I have now deleted and reinstalled all my accoints bar my main personal account. They all now work OK except they needed to be IMAP. My main account is POP on optusnet.com.au but if I set up a new account on that server using POP I get the same send problem. Is it possible to change my main account from POP to IMAP? I do not want to delete it as I want to retain the associated folder emails.

Read this answer in context 👍 0

All Replies (5)

Stans
Stans
more options

Reboot Windows into safe mode with networking and try again. Something is interfering with Thunderbird's network communication.

Stans
Stans
more options

According to https://www.optus.com.au/for-you/support/answer?id=1434, the username should be your full email address.

rhumpherson
rhumpherson صاحب السؤال
more options

Thanks for your suggestions Stans but safe mode with networking produced the same result The smpt settings always worked in the past, but tried full email address and same result.

Stans
Stans
more options

So, all 9 accounts are trying to send using the same SMTP server (captured in screenshot)?

rhumpherson
rhumpherson صاحب السؤال
more options

الحل المُختار

The 9 accounts use 3 different servers. I have now deleted and reinstalled all my accoints bar my main personal account. They all now work OK except they needed to be IMAP. My main account is POP on optusnet.com.au but if I set up a new account on that server using POP I get the same send problem. Is it possible to change my main account from POP to IMAP? I do not want to delete it as I want to retain the associated folder emails.