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We have major problem about "junk email" . We have an Email Blast software. The system is developed in PHP. We send a thousand emails for visitors promotion. The email contains an image (.jpg, .gif) format. The size of the image is 1200x700. Only the image contains the information about the show and the subject. It seems that every time we send a bulk of email, the email always goes to junk mail of the recipient. We always have this problem. What do you think is the cause of that problem? What are the solutions for this problem?

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closed as off topic by Iain, Chopper3 Jun 22 '11 at 9:54

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How about putting some real content in it? –  Ignacio Vazquez-Abrams Jun 22 '11 at 8:54
It sounds to me like the junk mail filters are doing their job correctly. –  Flimzy Jun 22 '11 at 8:59
Cool story bro. –  Ignacio Vazquez-Abrams Jun 22 '11 at 9:02
Sounds like you're sending some spam to me. –  Matt Jun 22 '11 at 9:19
If you feel the only way to communicate your message is with a 1200x700 image, then maybe email isn't your communication medium. –  Shadur Jun 22 '11 at 9:36

1 Answer 1

There are many reasons your mail could be considered junk:

  • Because your mail matches charactaristics typical of spam. This could be thousands of things, but some common ones might be:
    • It has mail headers that look like it comes from bulk mailing software
    • It has very little text, and large graphics
    • It contains keywords typical of spam
    • It contains links that look spammy
    • Thousands of other things that are well beyond the scope of this answer
  • Your server could be on one or more DNSBLs
  • Recipients of your mail may have trained their spam filter to recognize your mail as spam

My advice is to not send "email blasts"... Rule of thumb: If the name of a marketing strategy contains the the word "blast", it's not a good strategy.

(In the interest of full disclosure, I work for an anti-spam company)

EDIT: I meant to include this in my answer originally, but forgot...

The best way to answer your question is to examine the logs of whatever software put your software in the Junk mail folder originally. If you don't have access to those logs, perhaps the software was generous (as SpamAssassin is by default, for instance) and added headers to the message that will give you clues as to why it thought the mail was spam.

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Another good idea the questioner would to well to heed is to not send out an email consisting only of a bloody huge image file –  Shadur Jun 22 '11 at 9:35
Thanks man! So the solutions is not to use image but real text? –  adietan63 Jun 22 '11 at 9:36
Did you read my answer? That is one possible answer that may help your situation in some cases. It is impossible for me to know, since a) I haven't seen your mail b) I don't know which servers are classifying it as spam, c) I don't know what criteria those servers use in their classification. –  Flimzy Jun 22 '11 at 9:39
@adietan63 - "So the solutions is not to use image but real text" - welcome to the bronze-age! –  Chopper3 Jun 22 '11 at 9:43
thank you! thank you!chopper! –  adietan63 Jun 22 '11 at 9:53

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