Error 550 is an SMTP (Simple Mail Transfer Protocol) outgoing server error code.
It usually occurs when you try to send emails through your Outlook account and the email message encounters a relay error. The email returns back without being delivered with a 550 error message.
The error message is prompted as either of the following:
"550 Requested action not taken: mailbox unavailable"
"550 5 2 1 mail from refused spam site"
In other words, the error code 550 means that your SMTP server was not able to deliver the sent email to the user.
There are multiple reasons for this error message including:
Further Information and Manual Repair
Regardless of what the reason may be for the error 550 code occurrence, it is advisable to repair and fix the issue quickly to avoid inconvenience.
You may not be able to send emails from your Outlook account if the error continues. This can cause great hassle in corresponding with others timely and may create a big communication gap.
Here are some quick and efficient ways to resolve this issue on your system:
There is no need to panic when you encounter error 550. Sometimes the error message may occur because you inserted the wrong/ incorrect email address of the recipient.
In such a case, cross-check the recipient’s email address to verify if it is correct. If not, insert the correct address and try sending the email again.
If the error still persists, try other methods to resolve it. Sometimes error 550 can also occur due to incorrect SMTP settings.
Fix it to resolve the error. This can be done by opening your Outlook settings Tools and Accounts option. Now go to view/change the email account for the email account you are having problems with.
After that check, the SMTP server is set to mail.yourdomain.com. Then click more settings and then click the outgoing server tab. See if the ‘My server requires authentication for the outgoing server’ is checked. If not, then check on it. Then simply save to confirm changes. Now try emailing again.
Hopefully, this will resolve the issue.
Another reason for the error occurrence can be ISP blockage.
When the junk email volumes increase, network administrators (the people who are responsible for managing ISP servers) place restrictions on SMTP email servers to prevent spam on their network. If this is the reason, contact your ISP administrator to resolve the issue.
Malware and viral infection can also be the cause for error 550. To remove all kinds of viruses including Trojans and spyware and fix the issue right away without compromising on the speed of your PC it is advisable to download Restoro.
This is a highly functional and advanced PC Fixer embedded with multiple utilities like a powerful antivirus and a system optimizer.
It scans your entire PC in seconds, detects and removes all kinds of viruses. Simultaneously, the system optimizer feature ensures the speed of your PC does not slow down during the scanning and virus removal process.
This feature boosts your PC speed significantly.
It is user-friendly and has easy navigations making it quite simple for even those users who are not technically sound to work around it and operate it with ease. It is compatible with all Windows versions.
Click here to download Restoro and resolve the error 550 messages today!
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Direct replacement for Apple M1 Chip is near. There were some M1 Chips versions like M1 MAX and M1 ULTRA that were upgrades of the existing M1 chip, but the new and upcoming M2 is something different and it is aiming to replace M1 completely.
Made in a 5-nanometer design, with 20 billion transistors and 100GB/s of unified memory bandwidth is meant to increase performance over M1. It has the same M1 8 core design with 4 high-efficiency cores and 4 high-performance ones.
All CPU and GPU cores are faster than their M1 equivalents and Apple states that when running M1 and M2 at the same power level M2 will perform 25% faster. The first version of the chip will place focus on power efficiency so if you are more on side of being a power user wait for the MAX or ULTRA version of M2.
M2 system on a chip like its predecessor M1 combines both CPU and GPU on a single chip with shared memory in order to increase performance compared to systems that have separate CPU and GPU. M2 so far has been only announced for MacBook Air and the 13-inch MacBook Pro that suppose to hit the market somewhere around July this year. Of course, we expect that M2 is included in future iPad series or Mac Mini series as well.