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The message is sent to a queue that does not exist. [2] [3] The maximum queue length is exceeded. The message exceeds the size limit. The message expires because it reached the TTL (time to live) [4] The message is rejected by another queue exchange. [5] The message has been read and rejected too many times. [6]
The server has exceeded the bandwidth specified by the server administrator; this is often used by shared hosting providers to limit the bandwidth of customers. [ 38 ] 529 Site is overloaded
The message flows are in general driven by the control-point asking for units and the server granting them. The message may also be generated by other diameter applications, such as NASREQ (RFC4005) for sessions that are time/usage-limited. The following diagram shows a simplified message flow for a session using quota grants.
If you have any combination of "AOL" in your display name, the message won't go through. It is especially important to check your Mail settings for this if your account has been recently compromised, as hackers will often change your name to make it harder for you to use your account normally even after it's secured. Clear your browser's cache
If you've received a notification that a limit has been met, you'll need to wait a set amount of time before you can send more emails. Most sending limit notifications inform you of how long you'll have to wait. If you're planning to regularly send bulk email, consider looking into alternate solution.
C: This is a test message with 5 header fields and 4 lines in the message body. C: Your friend, C: Bob C: . S: 250 Ok: queued as 12345 C: QUIT S: 221 Bye {The server closes the connection} And below is an example of an SMTP connection in which the SMTP Server supports the Enhanced Status Code, taken from RFC 2034:
Limiting the speed of data sent by a data originator (a client computer or a server computer) is much more efficient than limiting the speed in an intermediate network device between client and server because while in the first case usually no network packets are lost, in the second case network packets can be lost / discarded whenever ingoing data speed overcomes the bandwidth limit or the ...
Is your inbox suddenly getting flooded by spam and other emails? Learn how to identify and deal with spam bombing.