Error when sending email ( 550 Access Denied Invalid HELO Name)

Error when sending email ( 550 Access Denied Invalid HELO Name)

I believe, when you used your email at the office, it went via the corporate network. And I think your corporate network is in the green list,  therefore you may not have had this problem while at office. For outside the network, your office mail server must be using authenticated email. This means, you need to authenticate yourself to the server BEFORE attempting to send mail out.

This is because email servers have a program to "relay" emails. The email relay module (as it name implies) simply relays email to the destination, regardless of the sender. As of late, spammers have used un-secure email servers to relay their emails.

Therefore, nowadays in order to relay emails via an email server, you need to authenticate yourself first. That is you need to have a valid username and a password at the email server to send email. You need to turn on authentication in your email software. Hope this helps.

Error when sending email ( 550 Access Denied Invalid HELO Name)

Thank you TechnoHat. I think, I somewhat understood what you were saying. My knowledge of technical terms is very limited! Would it be possible for you to guide me as to where this setting is? I think I am using Microsoft Outlook 2003.

Error when sending email ( 550 Access Denied Invalid HELO Name)

To enable authenticated email in Outlook 2003:

1. Go to Tools -> Email Accounts.
2. Select "View or change existing e-mail Accounts" option and select the next button.
3. Select the office email account and select "Change".
4. On the corresponding window you will see a button called "More Settings". Click on it.
5. On the next window go to the "Outgoing Server" tab, tick the "My Server Requires authentication".

That should do the trick.

Error when sending email ( 550 Access Denied Invalid HELO Name)

I have given a screenshot for your reference.

Error when sending email ( 550 Access Denied Invalid HELO Name)

Experts,

Thank you for your guidance. I changed the outlook 2003 settings as specified by TechnoHat. The screenshot was very helpful. But I still cannot seem to send out email. I keep receiving the same error message. I will try iRandom's solution and will keep you posted. Pray for me!

Error when sending email ( 550 Access Denied Invalid HELO Name)

Guess what? iRandom was right on track! Looks like my broadband provider in Sweden, indeed have a special email server that I need to put to send emails out. I had a look at their website and it was posted in their FAQ pages. I changed the outgoing server to the mail server address given by the broadband provider. Hey presto! It works! I thank both iRandom and TechnoHat for providing me with help. I learned 2 new things today!

Error when sending email ( 550 Access Denied Invalid HELO Name)

Pleasure is all mine in helping you out! Happy emailing! In event you go to another country and cannot send email, always check with the internet provider.