php - 硬错误:SMTP-> FROM SERVER:421意外失败，请稍后再试

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我看了很多解决方案页面，但无法解决此问题。我不明白为什么会这样，因为昨天使用时一切都很完美。请帮助我:(

注意：我只是网页管理员，而不是服务器管理员

!!!!您可以查看我的代码并在此处下载-> http://s2.dosya.tc/server/6vnkfc/codes.rar.html

我的日志：

SMTP -> get_lines(): $data was ""
SMTP -> get_lines(): $str is "220-nserver75.emikrondns.com ESMTP Exim 4.87 #1 Tue, 14 Jun 2016 00:22:22 +0300 "
SMTP -> get_lines(): $data is "220-nserver75.emikrondns.com ESMTP Exim 4.87 #1 Tue, 14 Jun 2016 00:22:22 +0300 "
SMTP -> get_lines(): $data was "220-nserver75.emikrondns.com ESMTP Exim 4.87 #1 Tue, 14 Jun 2016 00:22:22 +0300 "
SMTP -> get_lines(): $str is "220-We do not authorize the use of this system to transport unsolicited, "
SMTP -> get_lines(): $data is "220-nserver75.emikrondns.com ESMTP Exim 4.87 #1 Tue, 14 Jun 2016 00:22:22 +0300 220-We do not authorize the use of this system to transport unsolicited, "
SMTP -> get_lines(): $data was "220-nserver75.emikrondns.com ESMTP Exim 4.87 #1 Tue, 14 Jun 2016 00:22:22 +0300 220-We do not authorize the use of this system to transport unsolicited, "
SMTP -> get_lines(): $str is "220 and/or bulk e-mail. "
SMTP -> get_lines(): $data is "220-nserver75.emikrondns.com ESMTP Exim 4.87 #1 Tue, 14 Jun 2016 00:22:22 +0300 220-We do not authorize the use of this system to transport unsolicited, 220 and/or bulk e-mail. "
SMTP -> FROM SERVER:220-nserver75.emikrondns.com ESMTP Exim 4.87 #1 Tue, 14 Jun 2016 00:22:22 +0300 220-We do not authorize the use of this system to transport unsolicited, 220 and/or bulk e-mail.
SMTP -> get_lines(): $data was ""
SMTP -> get_lines(): $str is "250-nserver75.emikrondns.com Hello gorselsozluk.com [37.247.96.230] "
SMTP -> get_lines(): $data is "250-nserver75.emikrondns.com Hello gorselsozluk.com [37.247.96.230] "
SMTP -> get_lines(): $data was "250-nserver75.emikrondns.com Hello gorselsozluk.com [37.247.96.230] "
SMTP -> get_lines(): $str is "250-SIZE 52428800 "
SMTP -> get_lines(): $data is "250-nserver75.emikrondns.com Hello gorselsozluk.com [37.247.96.230] 250-SIZE 52428800 "
SMTP -> get_lines(): $data was "250-nserver75.emikrondns.com Hello gorselsozluk.com [37.247.96.230] 250-SIZE 52428800 "
SMTP -> get_lines(): $str is "250-8BITMIME "
SMTP -> get_lines(): $data is "250-nserver75.emikrondns.com Hello gorselsozluk.com [37.247.96.230] 250-SIZE 52428800 250-8BITMIME "
SMTP -> get_lines(): $data was "250-nserver75.emikrondns.com Hello gorselsozluk.com [37.247.96.230] 250-SIZE 52428800 250-8BITMIME "
SMTP -> get_lines(): $str is "250-PIPELINING "
SMTP -> get_lines(): $data is "250-nserver75.emikrondns.com Hello gorselsozluk.com [37.247.96.230] 250-SIZE 52428800 250-8BITMIME 250-PIPELINING "
SMTP -> get_lines(): $data was "250-nserver75.emikrondns.com Hello gorselsozluk.com [37.247.96.230] 250-SIZE 52428800 250-8BITMIME 250-PIPELINING "
SMTP -> get_lines(): $str is "250-AUTH PLAIN LOGIN "
SMTP -> get_lines(): $data is "250-nserver75.emikrondns.com Hello gorselsozluk.com [37.247.96.230] 250-SIZE 52428800 250-8BITMIME 250-PIPELINING 250-AUTH PLAIN LOGIN "
SMTP -> get_lines(): $data was "250-nserver75.emikrondns.com Hello gorselsozluk.com [37.247.96.230] 250-SIZE 52428800 250-8BITMIME 250-PIPELINING 250-AUTH PLAIN LOGIN "
SMTP -> get_lines(): $str is "250 HELP "
SMTP -> get_lines(): $data is "250-nserver75.emikrondns.com Hello gorselsozluk.com [37.247.96.230] 250-SIZE 52428800 250-8BITMIME 250-PIPELINING 250-AUTH PLAIN LOGIN 250 HELP "
SMTP -> FROM SERVER: 250-nserver75.emikrondns.com Hello gorselsozluk.com [37.247.96.230] 250-SIZE 52428800 250-8BITMIME 250-PIPELINING 250-AUTH PLAIN LOGIN 250 HELP
SMTP -> get_lines(): $data was ""
SMTP -> get_lines(): $str is "334 VXNlcm5hbWU6 "
SMTP -> get_lines(): $data is "334 VXNlcm5hbWU6 "
SMTP -> get_lines(): $data was ""
SMTP -> get_lines(): $str is "334 UGFzc3dvcmQ6 "
SMTP -> get_lines(): $data is "334 UGFzc3dvcmQ6 "
SMTP -> get_lines(): $data was ""
SMTP -> get_lines(): $str is "235 Authentication succeeded "
SMTP -> get_lines(): $data is "235 Authentication succeeded "
SMTP -> get_lines(): $data was ""
SMTP -> get_lines(): $str is "250 OK "
SMTP -> get_lines(): $data is "250 OK "
SMTP -> FROM SERVER:250 OK
SMTP -> get_lines(): $data was ""
SMTP -> get_lines(): $str is "250 Accepted "
SMTP -> get_lines(): $data is "250 Accepted "
SMTP -> FROM SERVER:250 Accepted
SMTP -> get_lines(): $data was ""
SMTP -> get_lines(): $str is "354 Enter message, ending with "." on a line by itself "
SMTP -> get_lines(): $data is "354 Enter message, ending with "." on a line by itself "
SMTP -> FROM SERVER:354 Enter message, ending with "." on a line by itself
SMTP -> get_lines(): $data was ""
SMTP -> get_lines(): $str is "421 Unexpected failure, please try later "
SMTP -> get_lines(): $data is "421 Unexpected failure, please try later "
SMTP -> FROM SERVER:421 Unexpected failure, please try later
SMTP -> ERROR: DATA not accepted from server: 421 Unexpected failure, please try later
SMTP Error: Data not accepted.

最佳答案

421意外故障，请稍后再试


这是服务器端的临时问题，就像它说您应该稍后再试。发生这种错误的原因可能是邮件服务器上的磁盘已满或某些限制，您允许在特定时间或类似时间内发送多少邮件。

如果问题仍然存在，则需要联系邮件服务器的提供商，并要求解释或解决问题。