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Knowledgebase: Email
Common Errors encountered while Sending Mail
Posted by Noble M on 27 August 2013 01:06 PM

This page will help you in certain issues and error codes you face while sending emails:

 

Error : 550-[SPF] not allowed to send mail 

The bounce error message is along the lines of the following where xxx.xxx.xxx.xxx is an IP address and the domain is that of the sending address.

550-[SPF] xxx.xxx.xxx.xxx is not allowed to send mail from {domain.com}.
550 Message blocked - Please check settings

The above error means that the mail from domain.com was rejected due to the settings specified in its SPF records i.e it does not list the IP to be a valid source for domain.com's emails.

SPF records are used to prevent any mail forgery, email spoofing, etc.
A common SPF setting is "v=spf1 a mx -all " 
where 
[v=spf1]: This identifies the TXT record as an SPF string.
[a]: refers to the domain IP . The domain is allowed tosend mail through this IP address.
[mx]: refers to the domain MX record. The domain is allowed to send mail through this MX record
[-all]: No other servers are allowed to send mail from this domain.

Kindly feel free to contact us by submitting a ticket to our support team providing us with the IP or MX records that specify the source of emails for your domain so that we can help you with adding correct SPF records.

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Error Message on Bounce Back Email : 

The server response was: 5.7.1 The message was rejected due to classification as Confirmed SPAM or BULK.

 

Reason:

This is a bounce back message that you receive when an email is classified as bulk while sending.

 

Solution you may try:

You can try the following steps and see if you are getting same message while sending a mail :
1. Modify the subject and try to send the message again.
2. Make sure that you are not sending the mail in a bulk format.
3. Kindly, ensure that the mail doesn't contain any script, attachment or content that would help the servers mark it as spam or bulk.
 

If you still feel that a genuine email is rejected as SPAM or BULK, you need to send the same email with the full headers and the content to us by creating a ticket. The email in question will be reviewed manually.
 

So please get back to us with the following details :

  1. From address and Password
  2. Complete Headers
  3. Subject
  4. Contents
  5. Attachments, if any

We will review the mail manually and recreate it to find the reason for the block and troubleshoot it accordingly.

 

Error Message : 550 Access denied (Error on Email Client Outlook)

The error message is reported by the e-mail server to your email client such as Outlook or Outlook Express because the check box labeled "My Server Requires Authentication" is not checked.

 

Solution you may try:

Your email client attempts to send the email to the server without providing a password, hence the server replies that you are not allowed to relay without proper authentication.

Steps to enable the option "My outgoing server (SMTP) requires Authentication":
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Tools > Accounts > Mail > Properties > Servers, ensure that you have enabled the option "My outgoing server (SMTP) requires Authentication".

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