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.

Search Support

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

Natao arisiva ity resaka mitohy ity. Mametraha fanontaniana azafady raha mila fanampiana.

The mail server sent an incorrect greeting: smtp687.syd.oss-core.net.

  • 1 valiny
  • 1 manana an'ity olana ity
  • 1 view
  • Valiny farany nomen'i user01229325

more options

So all of a sudden, with no changes from my side, i can no longer send emails from Thunderbird OR windows live mail which was sitting dormant until i revived it after having this Thunderbird email issue! I can receive emails but not send, i simply get this message: "The mail server sent an incorrect greeting: smtp687.syd.oss-core.net"

None of my 4 emails work now! Please help!!

Cheers, Bill

So all of a sudden, with no changes from my side, i can no longer send emails from Thunderbird OR windows live mail which was sitting dormant until i revived it after having this Thunderbird email issue! I can receive emails but not send, i simply get this message: "The mail server sent an incorrect greeting: smtp687.syd.oss-core.net" None of my 4 emails work now! Please help!! Cheers, Bill

All Replies (1)

more options

So you have 2 different email clients failing. Sounds like you need to call your provider and see what changes you need to make.