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System.Net.Mail.SmtpException: Transaction failed. The server response was: Rejected - Message containing bare LF's.

Description:I am sending email through my code using c#,and the email functionality working fine on my local environment but when deployed on live environment it started giving me following exception,
System.Net.Mail.SmtpException: Transaction failed. The server response was: Rejected - Message containing bare LF's.

I am sending html formatted email.

Posted by: | Posted on: Oct 12, 2018

1 answers

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5

The appearance of "bare" "CR" or "LF" characters in text (i.e., either without the other) has a long history of causing problems in mail implementations and applications that use the mail system as a tool.
Simple way to solve this is by removing those character from your email html, you can use the following code for the purpose.

emailHtml = emailHtml.Replace("\r", string.Empty).Replace("\n", string.Empty);

Replied by: | Replied on: Oct 17, 2018


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