importsocketdefsmtp_send_email(server_address,sender,recipient,subject,body):# 创建一个套接字连接SMTP服务器sock=socket.socket(socket.AF_INET,socket.SOCK_STREAM)sock.connect(server_address)# 接收服务器的响应response=sock.recv(1024).decode()print("Server: ",response)# 发送EHLO命令sock.sendall(f'E...
551 User not local; please try <forward-path> (See Section 3.4) 552 Requested mail action aborted: exceeded storage allocation 553 Requested action not taken: mailbox name not allowed (e.g.,mailbox syntax incorrect) 554 Transaction failed (Or, in the case of a connection-opening response, ...
CRAM-MD5方式 CRAM-MD5即是一种Keyed-MD5验证方式,CRAM是“Challenge-Response Authentication Mechanism”的所写。所谓Keyed-MD5,是将Clieng与Server共享的一个Key作为一部分MD5的输入,正好邮件系统的用户口令可以作为这个Key。具体的交互如下: S: * OK IMAP4 Server C: A0001 AUTHENTICATE CRAM-MD5 S: + PDE4OT...
1. 解决办法是等一段时间之后,等尖峰期过后再行寄送。 465 Invalid Response Code Received From Server 自服务器接收到无效的认证回应 自2010年开始,osTicket或是其他的邮件服务器开始使用此错误代码,若是认证设定有错误时,收信者的邮件服务器会回应此错误代码。 1. 请收信者联络邮递员解决认证设定上的修正。 4...
1098staticvoid1099mta_io(struct io*io,int evt,void*arg)1100{...1133caseIO_DATAIN:1134nextline:1135line=io_getline(s->io,&len);...1146if((error=parse_smtp_response(line,len,&msg,&cont))){ 第一行 (when line[3] == '-')会链接到一个大小为2KB的replybuf: 代码...
POP3，全名为“PostOfficeProtocol-Version3”，即“邮局协议版本3”。是TCP/IP协议族中的一员，由RFC1939定义。本协议主要用于支持使用客户端远程管理在服务器上的电子邮件。提供了SSL加密的POP3协议被称为POP3S。POP协议支持“离线”邮件处理。其具体过程是：邮件发送到服务器上，电子邮件客户端调用邮件客户机程序以...
The RecipientAddressExpanded field gets an instance of the SmtpResponse structure that represents a 250 2.1.5 Recipient Address was Expanded response. Namespace: Microsoft.Exchange.Data.Transport.Smtp Assembly: Microsoft.Exchange.Data.Transport (in Microsoft.Exchange.Data.Transport.dll) Syntax C# 复制 ...
DescriptionResponse codeMore information Authentication successful 235 Authentication successful Your SMTP client successfully connected and signed in to the SMTP server. Successful delivery 250 Ok MessageID MessageID is a unique string of characters that Amazon SES uses to identify a message. Service unav...
Successful response:250 2.1.0 Sender OK Failure response:550 5.1.7 Invalid address Possible reasons for failure: A syntax error in the sender's e-mail address. Failure response:530 5.7.1 Client was not authenticated Possible reasons for failure: The destination server doesn't accept anonymous me...
Here, we initiate a connection, pass the HTTP POST payload and receive a 200 OK from the API endpoint. We don't have to issue a sequence of commands and wait for a response from the server after each command. To learn more, check out ourDocumentationfor more info, orcontact usand we...