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SMTP Error 449

Category: Other
Tags: # # #

Description: A routing error. What does this mean? Also, like most other Microsoft Errors, this message leaves a lot to question. No official description is provided for this, however see the fix suggestion for possible further diagnosis. How to fix SMTP Error 449? Microsoft’s official suggestion for diagnosing and attempt to resolve the issue, is […]

SMTP Error 450

Category: Other
Tags: # # #

Description: Requested mail action not taken: mailbox unavailable (e.g., mailbox not found, no access, or command rejected for policy reasons). What does this mean? Generally errors ending with 0 are going to be the least specific. This error is no exception. This has many meanings or specific possibilities. The most common possibilities include: The recipient […]

SMTP Error 420

Category: Other
Tags: # # #

Description: Timeout connection problem. What does this mean? This error has been provided by a GroupWise server, only the server administrators of the receiving mail server will be able to confirm the actual issue present. However, this is typically as a result of being blocked by the recipient’s firewall/filter or the server is experience a […]

SMTP Error 421

Category: Other
Tags: # # #

Description: Service not available, closing transmission channel. What does this mean? This is an unfortunately, open ended error. Most commonly this is in relation to the destination server not being “reachable”, however it may also mean that your sending mail server is not “reachable”. The latter of the two options is less common, unless a […]

SMTP Error 431

Category: Other
Tags: # # #

Description: Not enough storage or out of memory. What does this mean? The actual message may seem a little misleading. This is not in relation to the receiving/destination server running out of memory or not having enough storage for delivery. This is actually in regards to the amount of recipients the email message has. Suggesting […]

SMTP Error 432

Category: Other
Tags: # # #

Description: Recipients Exchange Server incoming mail queue stopped. What does this mean? Like almost all Microsoft Errors, the description doesn’t give you much. It’s typically due to a connection problem, however the only way to confirm the issue will be to contact the server administrators. How to fix SMTP Error 432? Unfortunately, with out knowing […]

SMTP Error 441

Category: Other
Tags: # # #

Description: Recipients mail server is not responding What does this mean? This error isn’t as specific as hoped, however it does confirm the issue is not regarding your server (or outgoing mail server). The issue is specifically regarding the recipient’s incoming mail server. How to fix SMTP Error 441? Knowing that the issue is on […]

SMTP Error 442

Category: Other
Tags: # # #

Description: Connection dropped during transmission. What does this mean? Everything was processing successfully, with no errors reported from the recipient server, until an abrupt connection issue. This is almost always related to networking misconfiguration or downtime. How to fix SMTP Error 442? Check your computer’s local internet connection, after confirming no local network issues exist, […]

SMTP Error 446

Category: Other
Tags: # # #

Description: The maximum hop count was exceeded for the message: an internal loop has occurred. What does this mean? Your mail server was unable to determine where to send the email. This can be caused by numerous redirects and different intermediate mail exchanges. How to fix SMTP Error 446? Contact your SMTP or Mail Exchange […]

SMTP Error 447

Category: Other
Tags: # # #

Description: Your outgoing message timed out because of issues concerning the incoming server. What does this mean? Your mail server was not able to process the entire list of email recipients intended for the message. Some configurations have a recipient maximum that will cause this error. How to fix SMTP Error 447? Reduce the number […]