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How can I avoid my email being classified as spam

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Last Modified: 2013-12-17
Hi!

I was assigned to the task to research how our clients news mail can avoid being marked as as spam. The emails requires use of HTML and showing images. Ive read alot of guidelines on the HTML and CSS when used in emails. But I haven't seen to many regarding the setup of the emails. I understand that pictures and links will increase the chance of being classified as spam. But what other factors are there? Does it matter from which SMTP server you are sending it? Does it matter if SMTP server relates to the sender email domain? I.e smtp:smtp.mydomain.com sender:john.doe@mydomain.com.

It's important to support a wide range of email clients. Should attached images be avoided completly?
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I understand that pictures and links will increase the chance of being classified as spam.
That is not entirely accurate.  Freinds send each other pictures and links all the time wihtout their emails being marked as spam.  A few links and/or pictures are good.  Excessive  links and/or pictures are problematic.  Use moderation.
Does it matter if SMTP server relates to the sender email domain?
What matters is that you have proporly configured the SPF records for the domain that the emails are being sent from.  If you have proporly set up good SPF records then the relationship of the SMTP record to the domain does not matter.
You MUST read the content on these links:
      http://www.openspf.org/
      http://www.openspf.org/Introduction
      http://en.wikipedia.org/wiki/Sender_Policy_Framework
Should attached images be avoided?
No.  As I said earlier, freinds send each other attached images all the time and their messages don't get marked as spam.  Just don't do anything in excess.

Hi,

here is some tips for that:

1. Return-Path and From should have valid email addresses;

2. Better have the recipient NAME together with his email address;

3. Plain text email is reportedly safer than HTML;

4. Remove the X-Mailer header (saw this recommendation in some posting,
not sure if true).

5. Also your server needs to have a valid R(everse)DNS entry.


Also look at the following:

http://www.cdt.org/speech/spam/030319spamreport.shtml

Hope this will give you the idea.


Regards

Author

Commented:
Thanks for the help!
Top Expert 2009

Commented:
glad we could be of help!

@IntPtr: I like the points, of course, and tx for that, but the other experts also provided valuable information. It is possible to split points at EE by using the Split Points button...

Author

Commented:
Ok, this was my first question, so I was unsure of how that worked. Ill think of that to my next question.
Top Expert 2009

Commented:
No problem, welcome at EE! It is a tad different from other forums. If you need some help, I'll be happy to assist. On closing questions, there's a short explanation here: https://www.experts-exchange.com/help.jsp?hi=407

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