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.
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The GifsGalore Toolbar from Mindspark Interactive Network, Inc. is proposed to active Web users who like to embed GIFs into their emails and share entertaining GIFs with friends via social media services. The GifsGalore software can be added to your Internet client for free but you need to be using Google Chrome, Internet Explorer or Mozilla Firefox for the GifsGalore Toolbar to be activated.
When installed it hijacks your New tab page and default search engine changing them to search.myway.com. This extension also monitors user browsing activity recording information such as: visited websites, clicked links, viewed products, etc. This information is later used to better target ads. While browsing the internet with this extension enabled you will see additional pop-up ads, as well as sponsored links and injected ads throughout your browsing session, especially in search results.
FindYourMaps is a Google Chrome Browser Extension developed by Mindspark. This extension hijacks your home page and new tab page changing them to MyWebSearch.com in order to display ads more efficiently.
While using this extension you will see additional pop-up ads, sponsored content, and unwanted ads (that are sometimes not ever relative to your search query) displayed throughout your browsing sessions, cluttering up the pages and sometimes even going over page parts, making some pages unreadable.
Several anti-virus applications have marked this Extension as a Browser Hijacker due to its data mining behaviors and ad injections and were marked for removal by most of them.
Quest 2 has been crowned as the best overall VR headset by many websites, and to be honest it is really a great piece of equipment deserving of every praise it gets. It seems that Meta feels that it can do better so the new upcoming Quest Pro is upgraded and a new line of VR sets from this company. The economic standard Quest line will not be shut down and it will still remain as an economic version of Meta's VR product line.
Quest Pro will be added as a new line of the better product line with better performance and better quality. It is the first VR headset that is packing Qualcomm Snapdragon XR3+ Gen 1 chipset, 12GB of RAM, 256GB of internal storage, and 10 high-resolution sensors. Of course, this much power and improvement come with a higher price tag, this time that price tag is $1,499.99.
The new VR headset promises industry-leading visuals with a new optical stack instead of Fresnel lenses in Meta Quest 2 with thin-layer pancake optics that fold light reducing the depth of the optical module by 40% and at the same provides clear and sharp visuals.
The headset will give display more vivid colors, richer colors, and higher contrast by incorporating local dimming and quantum dot technology. It composes of specialized backlight hardware accompanied by software algorithms that can control more than individual LED blocks independently.
The Quest Pro will also come packed with new Meta Quest Touch Pro controllers. They will feature three built-in sensors to track the controller's position completely independent of the headset which means that tracking and range of motion will be improved. These new controllers will also be sold separately at the cost of $299.99 and they can be used with Quest 2.
The headset is available for preorder and it will start shipping in late October on the Meta website