If you receive a rejection letter from the system during the mail transmission, please check the content of the rejection letter and compare it with the following situations to find out the reason. The general reasons for rejecting letters are as follows:
1. The recipient's address could not be found.
The rejection letter includes: invalid address (# 5.5.0)/userunknown/userisnotfound/no such account.
Cause of error: the other party's address does not exist or the e-mail address is entered incorrectly.
Solution: Please check whether the other party's address is correct and send it again.
There is not enough space in the recipient's mailbox to receive new mail.
Mail rejection includes: the mailbox is full/the quota exceeds the user's hard limit/the mailbox space is insufficient.
Cause of error: The recipient's mailbox is full and there is not enough space to receive new mail.
Solution: Clear up enough space in time and receive this email through other means.
3. Exceeded the mail size limit set by other mail service providers.
Rejection of letters includes: 552 The message size exceeds the fixed limit.
Error reason: This email is too large, which exceeds the mail size limit of the other mail service provider.
Solution: Split the attachment into multiple parts and send it or ask the other party to change a bigger mailbox to receive this letter.
4. Rejected by another server:
Rejection letters include: recipient address rejection /552 error: content rejection /553 mail data rejection.
Error reason: Rejected by other mail servers.
Solution: Inform the user of the specific reasons, and ask the recipient to explain the situation to the network management, and cancel the normal mailing of Baidu address from the blacklist.
5. The server cannot establish a link:
The rejection letter includes: Sorry, I can't establish an SMTP connection. (# 4.4. 1)/550 The system is busy.
Error reason: one of the receiving servers of the other party was busy at that time or the link between our server and the other party was not very smooth.
Solution: It may be a temporary situation. Test it and send a letter to the destination address to see if there is any rejection. If the user reports that it is unstable for a period of time and will reply after a period of time, please record the complaint information and the original reply and contact us immediately to solve it.
6. There is no target mail host:
The rejection letter includes: Sorry, I can't find a host named kail.com.cn. (# 5. 1.2)
Cause of error: generally, it is an input error in the back part of the other party's mailbox @ or there is a problem with the server's resolution.
Solution: Ask the user to check whether the other party's address is correct and resend. In addition, you can use the email address of other websites to send it to the other party for testing to see if there are any rejections. If not, please contact us immediately.
7. There are too many recipients in a letter:
The rejection of the letter includes: the remote host said that there are too many recipients in the 553 email, and there should be less than 20.
Cause of error: The other party has restrictions on the recipients of the letter. There were too many recipients of this letter, so it was returned by the other party.
Solution: You can send an email to this address alone, or reduce the discussion about the recipient of this letter.
8. The mail server or ip address of the other party cannot be found.
The rejection letter includes: Sorry, I can't find the mail exchanger or IP address.
Cause of error: In general, the configuration of the other party's mail server has been modified, and it will take one or two days to synchronize successfully on the network.
Solution: Please send it again later to see if it works properly. If this situation lasts for a long time, it is no problem to send it through other mailboxes. You need to contact us immediately to solve the problem.
2 "Hello, I can't send an email. Is there any error message in the system?"? Or, have you received a rejection letter? If there is a reply, please forward it to webcn@staff.sina.com.cn as an attachment in the following mailbox.
, and indicate the reason for returning the letter. Baidu will reply to you immediately after receiving your email. In addition, please pay attention to whether the recipient address you filled in is correct. You can try to send yourself an email to see if it can be sent successfully.
In addition, if you send and receive mail through the client software, you can change the server address you set on the client to the IP address of the server, in which the IP address of the POP3 server for free mail is: 202.106.182.168, and the IP address of the SMTP server is: 202.5438+006.6438. If not, please tick. After changing to IP address, you can omit the steps of DNS resolution. If you still can't send and receive emails at normal speed, I suggest you do the following tests:
Please use the ping network command to check the connection with Baidu mailbox server. The specific method is as follows:
If your computer operating system is: win2000, XP.
Click Start in the lower left corner and select Run from the pop-up menu. Enter "cmd" in the dialog box that appears. A black dialog box in DOS status will pop up. Enter the ping space pop3..sina.com.cn (incoming server) or smtp.sina.com.cn (outgoing server). If this is your email address, enter the ping space pop3.vip.sina.com (receiving server) or smtp.vip.sina.com (sending server). Please provide the following test results, please confirm the problem, thank you!
If your computer operating system is: win98, winme.
Click Start in the lower left corner and select Program in the pop-up menu. A new dialog box will appear. Click "MS-DOS Mode" in the attached menu. A black dialog box in DOS status will pop up. Enter the ping space pop3.sina.com.cn (incoming server) or smtp.sina.com.cn (outgoing server) at the prompt. If this is your email address, enter the ping space pop3.vip.sina.com (receiving server) or smtp.vip.sina.com (sending server). Please provide the following test results, please confirm the problem, thank you!
In the result, if the value of time is less than 100, the link speed is normal; If it is greater than 150, your network speed is slow. Please contact your network provider.
If you have more questions, please contact Baidu Customer Service Center.
The national unified customer service hotline: 95 105670, please contact :webcn@staff.sina.com.cn.
3 "Unable to send email:
There are many reasons:
1. The other party refused to receive your email. Is that your mailbox is blocked by the other party; Contact your friends to see if there is any rejection in the setting area;
2. The email address you wrote is incorrect, unclear or incomplete and cannot be sent to the other party's email address;
3. The other party's mailbox is full and cannot be sent to;
4. The network or system is faulty; You can log out of the mailbox first, and then try logging in again;
5. The email and attachments you sent are too big.
The reason will be explained when the letter is returned. You can find out why.
In addition, you can consult Baidu Customer Service Center.
The national unified customer service hotline: 95 105670, please contact :webcn@staff.sina.com.cn.
I hope it helps you.
Why can't I get an email from my friend?
1》
Hello, if you can't send and receive mail, you can change the server address you set on the client to the IP address of the server, in which the IP address of the POP3 server for free mail is: 202.106.182.168 and the IP address of the SMTP server is: 202.5438+006.6438+. After changing to IP address, you can omit the steps of DNS resolution. If you still can't send and receive emails at normal speed, I suggest you do the following tests:
Please use the ping network command to check the connection with Baidu mailbox server. The specific method is as follows:
If your computer operating system is: win2000, XP.
Click Start in the lower left corner and select Run from the pop-up menu. Enter "cmd" in the dialog box that appears. A black dialog box in DOS status will pop up. Enter the ping space pop3..sina.com.cn (incoming server) or smtp.sina.com.cn (outgoing server). Please provide the following test results, please confirm the problem, thank you!
If your computer operating system is: win98, winme.
Click Start in the lower left corner and select Program in the pop-up menu. A new dialog box will appear. Click "MS-DOS Mode" in the attached menu. A black dialog box in DOS status will pop up. Enter the ping space pop3.sina.com.cn (incoming server) or smtp.sina.com.cn (outgoing server) at the prompt. Please provide the following test results, please confirm the problem, thank you!
In the result, if the value of time is less than 100, the link speed is normal; If it is greater than 150, your network speed is slow. Please contact your network provider.
If you have more questions, please contact Baidu Customer Service Center.
The national unified customer service hotline: 95 105670, please contact :webcn@staff.sina.com.cn.
Why can't I get a letter from my friend in the free mailbox?
2》
If you haven't received a letter from your friend, please check your own free email first. The easiest way to test is to send yourself an email. If it is sent out and received, it means that your free email address is all right and there is no problem. In addition, you must check whether your spam filtering settings are improper. Please log in to the settings area in your mailbox to make adjustments. In addition, you can ask the other party to test whether it is normal to send emails to other websites. If it is not normal, there is something wrong with the other party's mailbox server.
If there is no problem with the above three points, it may be that the other party sent spam to Baidu and was blocked by Baidu. Please send us an email with the subject: "I can't receive the email from the other party", and then write down the email address and general situation of the other party in the text. We will contact each other by email, ask them to send us a test email, and then find out the reason to solve the problem.
Our contact email address is :webcn@staff.sina.com.cn, and you are welcome to call us. Our customer service telephone number is 95 105670 (national unified toll-free hotline).
3 "Why can't I get a letter from my friend in the paid mailbox?" ?
If you haven't received a letter from your friend, please check your own billing email (whatever you want to send) first. The easiest way to test is to send yourself an email. If it is sent and received, it means that your charging mailbox is all right and there is no problem. In addition, you should check whether your spam filtering settings are incorrect. If there is nothing wrong with the above two points, it is likely that there is something wrong with the middle line or the other party's mail server. There are many factors that affect mail reception. One factor is Baidu's mail server, one is the middle line and the other is the other's server. If there is a problem in any link in the middle, there is a possibility that the mail will not be received. Specifically, it should be judged according to the rejection of the other party's letter. You can contact each other to see if there are any problems. In addition, what I want to give you here is that if your paid email address has been imported into the free email address, then we suggest that you'd better let the other party send an email directly to your paid email address, so as to ensure the fastest speed.
4 "How to set Baidu mailbox in outlook express?
/Sina help/2002-06- 14/ 1207 14 . shtml
If you still can't use it normally after setting up outlook express according to the above method, then you have to look at the error number in the specific error message of outlook. According to the comparison between the error number and the table below, in general, most problems can be solved.
OUTLOOK EXPRESS error message code table
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Baidu charge mail
Sending server: smtp.vip.sina.com
Receiving server: pop3.vip.sina.com
Baidu free mail
Sending server: smtp.sina.com.cn
Receiving server: pop3.sina.com.cn