O.P.
只是好奇是否有人遇到这个新问题 - 直到2月初，我才有任何问题。 This is the message I get back every to I send any email to *@bigpond.com address :
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This message was created automatically by mail delivery software.
A message that you sent could not be delivered to one or more of its
recipients.这是一个永久错误。 The following address(es) failed:
[email protected]
host extmail.bigpond.com [203.42.22.10]
SMTP error from remote mail server after pipelined end of data:
550-5.7.1 [email protected] Sender domain rejected. IB302
550 5.7.1 I {1C154CC9-364B-47F2-87F6-E344411E5FA27}
报告mta：dns; omr.i-0dc8599a1443d58cf
Action: failed
Final-Recipient: rfc822;[email protected]
Status: 5.0.0
Remote-MTA: dns; extmail.bigpond.com
诊断代码：smtp; 550-5.7.1 [email protected]发件人域被拒绝。 IB302
550 5.7.1 i{1c154cc9-364b-47f2-87f6-e34411e5fa27}
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评论
As it says Sender domain rejected I would contact The Messaging Company about this as他们现在管理所有TPG组电子邮件域。 （当然，假设您将电子邮件地址传输并支付了TMC的托管费等。）
支持。我向16个人发送了一个小组电子邮件，有4个有bigpond.com的电子邮件地址。
我将要重新启动它们，我们将看到发生了什么。
我是从ozemail.com.au（消息传递公司）发送的，
问题仍在发生。 I've forwarded the response to the messaging co but do not expect a reply!
评论
O.P.
Just tried again at 10:30am Sydney time and the same email has not been bounced after 4 minutes – wait and see.
评论
O.P.
Sending not working at all this morning – I updated the SMTP server settings and can now send again.这可能会帮助其他问题...
选择下面的每个字段，然后设置每个字段：
服务器：smtp.themessagingco.com.au
端口：465
加密方法：SSL/TLS身份验证
其余详细信息都在这里：
https：//support.themess
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