Email sending gets failed suddenly.

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In my web application I am using SMTP for sending Email to particular persons.It was working fine earlier but suddenly it stop working. My website is hosted on godaddy.I am using following smtp credentials in my web config.

C#

<add key="smtpServer" value="smtpout.secureserver.net" />
<add key="EnableSsl" value="false" />
<add key="smtpPort" value="80" />
<add key="smtpUser" value="user's email id" />
<add key="smtpPass" value="user's password" />

Any effort will be appreciated.

Posted 2-Sep-15 21:17pm

Innopad Solution

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phil.o 3-Sep-15 3:53am

SMTP Port 80? Are you sure?

Innopad Solution 3-Sep-15 5:30am

yes I am damn sure,

phil.o 3-Sep-15 5:37am

And what is the error message returned?

Innopad Solution 3-Sep-15 7:45am

{"Unable to read data from the transport connection: net_io_connectionclosed."}
this error I am getting in catch while sending email.

F-ES Sitecore 3-Sep-15 4:06am

Contact GoDaddy and ask them.

Sreekanth Mothukuru 3-Sep-15 4:36am

You might be spamming using their smtp server and hitting their reputation!

Innopad Solution 3-Sep-15 5:31am

can you please elaborate it.

Sreekanth Mothukuru 5-Sep-15 6:08am

There are several key things which we need to follow while sending emails from a dedicated or shared hosting servers. If we don't follow our server will be marked as spammer. Often these complexity is being handled by Email marketing vendors. Just for example, there should be a unsubscribe link and your company address at the bottom of every email. And there are many other thing to follow as well.

Just Google "email spam detection and reputation" for more information.

Also I recommend you to opt for any Email marketing solution from GoDaddy.

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Richard MacCutchan · Answer 1 · 2015-09-03T04:09:00

Solution 1

See https://www.google.com/search?q=net_io_connectionclosed[^].

Posted 3-Sep-15 4:09am

Richard MacCutchan