rcpt to command

When the recipient is unknown, the in reply to rcpt to Command will appear, and the following Bounce Message content will appear. After Hotmail and Gmail tests, both are rejected. Of course, the blacklist or international bandwidth and political

In fact, the error is not because of this error. It is detected that the actual error returned by the email server is 501 mail from address must be same as Authorization User. Only because both 503 error: Need MAIL command and 503 error: Need RCPT

Original SMTP authorization code and working principle [transfer]-One-Stop Conversion Http://www.chinaunix.net Author: tutux published at: 16:41:54 [Comment] [View Original] [mail server discussion board]

Php mail, php mail. Php mail class: php Mail is used to write a class for sending mails using phpsocket, which is easy to use. When php programs are used to send mails, in the 163 server, you can use the RCPT command to check php mail and php mail.

1. Introduction The goal of Simple Mail Transfer Protocol (SMTP) is to transmit mail reliably and efficiently, which is independent of the transfer protocol.The delivery subsystem only requires a channel that can ensure the sequence of transmitted

Write a PHP socket to send mail class, easy to use, when using the PHP program to send mail,In the 163 server, you can also verify that 163 mailboxes exist in the RCPT command, and there are many usefulI haven't thought about it for the moment.Note

From: author :( 2001-11-2309: 08: 00) Step 2: forward the host to the target host R: 220BBN-VAX.ARPASimpleMailTransferServiceReadyS: HELOUSC-ISIE.ARPAR: 250BBN-VAX.ARPAS: MAILFROM: @ USC-ISIE.ARPA: JQP @ MIT-AI label: SMTP from: Author:

Www. linuxforum. netJepheWu (2001-04-2118:16:42) 1. SMTP works in two situations: one is the transmission of email from the client to the server, and the other is the transmission from one server to another. SMTP is a request response protocol.

The original authorization code and working principle of the SMTP protocol. Www. linuxforum. netJepheWu (2001-04-2118:16:42) 1. SMTP works in two situations: one is to transfer an email from the client to the server, and the other is to transfer the

1.SMTP is working in two cases: one is to transmit e-mail from the client to the server, and the other is to transfer from one server to another Server 2.SMTP is a request/response protocol in which commands and responses are based on ASCII text and