Problems with Email Error 550?
If you're hav problems sending email and experiencing error 550 your computer might have some incorrect registry settings or configurations. Not only can this be a nuisance but registry corruption can lead to other problems also.
No worries, it's relatively easy to get it fixed!
The first step would be to run an error repair tool on your computer. This not only scans your registry for incorrect settings but usually will remove and repair errors such as error 550 and prevent them from occurring in the future.
Scan & Fix Error SMTP 550
Step 1: Download and Run or Save Official Repair Tool (Free)Step 2: Once you have it open, click the "SCAN" button.
Step 3: Simply click the "FIX ERROR" button.
Be sure to the above steps first but if for any reason it does not work I've written a little more about the error below.
If the error is not being caused by your registry it may be caused by two things; incorrect mail server settings or your ISP is blocking those particular mail servers. If it is in fact incorrect mail settings I suggest you give your ISP a call to try and confirm what they should be. They will usually walk you through exactly how to check and setup your email servers. If in fact they are blocking mail servers you will need to talk to them also. They will usually have a decent tech support department that can get it resolved. Remember, when all else fails, ask for a supervisor! Good luck.

