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Getting Bounce Back Messages
If you are getting many returned emails and bounce back messages but not sure why, it is most likely "email spoofing". This happens quite often on the most commonly used addresses (info@, sales@, webmaster@, etc.) and also on email addresses that are listed on the website. Unfortunately this cannot be...

Email Getting Rejected
If you are using a shared IP address, webmail, or forwarding your email to an outside destination your email may be being rejected because the larger ISP's (such as Comcast, Verizon, AOL, Hotmail and many others) will block the IP of the shared server your account is being hosted on....

Relaying Denied - SMTP Errors
If you try to send an email message and receive a "relaying denied" error you should check the following: 1. Check the internet security software to see if it is "scanning" email. Most of the time they will auto update and cause the email to error. 2. A majority of ISP's or...

Adding an Auto Reply to your Email Account - Auto Responder
Auto Responders allow you to send an automatic response to anyone who sends an email your email account. When an email is sent to your account, the response that you have created will be sent back to the person who send you the email. This feature will not prevent your...

Using SpamAssassin to Block Spam
Every one of our cPanel hosting plans is packaged with SpamAssassin in order to keep spam out of your inbox. SpamAssassin uses a wide variety of local and network tests to identify spam signatures. This makes it harder for spammers to identify one aspect which they can craft their messages...

Receiving 553 RCPT hosts Error Message
If you are receiving a 553 RCPT hosts Error Message when sending email via Outlook or another email client, you may want to ensure that you are set up to authenticate with your POP credentials before SMTP. The mail server requires you, the user, to authenticate by logging into...

Enabling Box Trapper
cPanel allows you to utilize a Box Trapper to force users that do not appear on a white list to respond to a verification email in order to send email to your box. To enable and configure the Box Trapper: • Log into your Customer Manager through your customer manager at https://my.opensourcehost.com • Click...

Configuring email filters
You may set up email filters on your server to help reduce the amount of spam or any other unwanted emails from arriving into your inbox. Filters can be created on the user or on the account level. Filters placed on the user level will only affect the specified mailboxes...

Viewing E-Mail Headers in Outlook Express
At times, to troubleshoot email issues, the email headers will have clues as to what may be causing the issue. To extract the email headers from an email using Outlook Express: • Open the email as you normally would • Right click on the email, and click “Properties” • Select the “Details” tab to see the...

Viewing E-Mail Headers in Outlook 2003
At times, to troubleshoot email issues, the email headers will have clues as to what may be causing the issue. To extract the email headers from an email using Outlook 2003: • Open the email as you normally would • Right click on the email and select “Options” • Here you’ll be able to see the...

Viewing E-Mail Headers in Thunderbird
At times, to troubleshoot email issues, the email headers will have clues as to what may be causing the issue. To extract the email headers from an email using Outlook 2003: • Open the email as you normally would • Click on “View” and then “Source” • This will show the email in its entirety This information...