What is spam? How to prevent emails from going to spam?
Posted: Sun Dec 15, 2024 8:09 am
Although email marketing has been around for many years, the line between spam and non-spam is still interpreted in different ways (and often ignored) .
In this article we are going to see, if not a definition in use, an approach to the term from a practical point of view.
And most importantly:
◆ How to evaluate the potential chances of your mailings falling into spam
◆ And how you can avoid it (as far as possible)
This is very important because, as you can imagine, emails israel phone number data that end up in the spam folder have much less chance of being opened.
And emails that are not opened have much less chance of selling.
So let's see why all this happens, we show you in Mailrelay .
NOTE: In this article I am not going to show you ways to avoid getting spam, that is outside the scope of this article.
1 · First of all, what is spam?
1.1 ► Spam vs. Phishing
1.2 ► Why does spam exist?
2 · How do ESPs and email clients know which emails are spam and which are not?
3 · What should I do if Hotmail, Gmail, Yahoo or AOL marks my email as SPAM?
4 · How to avoid being considered spam by Gmail
4.1 ► Email Authentication:
4.2 ► Contact list:
4.3 ► Relevant and quality content:
4.4 ► Maintain a good sender reputation:
4.5 ► Include clear unsubscribe links:
4.6 ► Check spam score:
5 · What should I do if I am marked as SPAM for reputation reasons?
6 · Is it possible to trick anti-spam systems?
6.1 ► Email marketing vs spam: Permission-based email marketing
7 · If your domain is new, give it time and use
8 · Add new contacts to your list regularly
8.1 ► Clean your contact list if you suspect the spam problem is there
9 · Next step, review the content of the email and its spam rating
9.1 ► How can we check the content of the email to avoid it arriving as spam?
9.2 ► Quick tips to avoid falling into SPAM
10 Most common and probable reasons why an email ends up in spam
10.1 Content of the email:
10.2 Unknown sender:
10.3 Bad domain reputation:
10.4 Missing unsubscribe links:
10.5 Bad email format:
11 · Common spamssassin messages and their possible solutions
11.1 ► HTML_SHORT_LINK_IMG_1
11.2 ► HTML has a low ratio of text to images
11.3 ► HTML: images with 0-400 bytes of words
11.4 ► HTML: images with 1200-2600 bytes of words
11.5 ► UPPERCASE_50_75
11.6 ► UPPERCASE_75_100
11.7 ► Message is 10% to 20% HTML obfuscation
11.8 ► HTML has unbalanced “body” tags
11.9 ► URI_WP_HACKED_2
11.10 ► FUZZY_CREDIT
11.11 ► URI_GOOGLE_PROXY
11.12 ► SUBJ_ALL_CAP
11.13 ► FUZZY_AMBIEN
11.14 ► Obfuscated URL
12 · Check everything we have discussed to avoid ending up in the spam folder
· First of all, what is spam?
Unsolicited email is the first thing that comes to mind. Spam emails. Unwanted advertising , in short. An advertising email with information that we have not requested and that someone (who we probably don't know at all) has sent us to sell us something.
Email providers are trying to stop or reduce the spam their users receive by every means possible.
It's very likely that you've received one of these emails before, right?
And it's also possible that you simply ignored it, or your email client stored it in the spam folder.
So with this definition of spam as an email or electronic mail that we have not requested, a key question arises.
► Spam vs. Phishing
In this article we are going to see, if not a definition in use, an approach to the term from a practical point of view.
And most importantly:
◆ How to evaluate the potential chances of your mailings falling into spam
◆ And how you can avoid it (as far as possible)
This is very important because, as you can imagine, emails israel phone number data that end up in the spam folder have much less chance of being opened.
And emails that are not opened have much less chance of selling.
So let's see why all this happens, we show you in Mailrelay .
NOTE: In this article I am not going to show you ways to avoid getting spam, that is outside the scope of this article.
1 · First of all, what is spam?
1.1 ► Spam vs. Phishing
1.2 ► Why does spam exist?
2 · How do ESPs and email clients know which emails are spam and which are not?
3 · What should I do if Hotmail, Gmail, Yahoo or AOL marks my email as SPAM?
4 · How to avoid being considered spam by Gmail
4.1 ► Email Authentication:
4.2 ► Contact list:
4.3 ► Relevant and quality content:
4.4 ► Maintain a good sender reputation:
4.5 ► Include clear unsubscribe links:
4.6 ► Check spam score:
5 · What should I do if I am marked as SPAM for reputation reasons?
6 · Is it possible to trick anti-spam systems?
6.1 ► Email marketing vs spam: Permission-based email marketing
7 · If your domain is new, give it time and use
8 · Add new contacts to your list regularly
8.1 ► Clean your contact list if you suspect the spam problem is there
9 · Next step, review the content of the email and its spam rating
9.1 ► How can we check the content of the email to avoid it arriving as spam?
9.2 ► Quick tips to avoid falling into SPAM
10 Most common and probable reasons why an email ends up in spam
10.1 Content of the email:
10.2 Unknown sender:
10.3 Bad domain reputation:
10.4 Missing unsubscribe links:
10.5 Bad email format:
11 · Common spamssassin messages and their possible solutions
11.1 ► HTML_SHORT_LINK_IMG_1
11.2 ► HTML has a low ratio of text to images
11.3 ► HTML: images with 0-400 bytes of words
11.4 ► HTML: images with 1200-2600 bytes of words
11.5 ► UPPERCASE_50_75
11.6 ► UPPERCASE_75_100
11.7 ► Message is 10% to 20% HTML obfuscation
11.8 ► HTML has unbalanced “body” tags
11.9 ► URI_WP_HACKED_2
11.10 ► FUZZY_CREDIT
11.11 ► URI_GOOGLE_PROXY
11.12 ► SUBJ_ALL_CAP
11.13 ► FUZZY_AMBIEN
11.14 ► Obfuscated URL
12 · Check everything we have discussed to avoid ending up in the spam folder
· First of all, what is spam?
Unsolicited email is the first thing that comes to mind. Spam emails. Unwanted advertising , in short. An advertising email with information that we have not requested and that someone (who we probably don't know at all) has sent us to sell us something.
Email providers are trying to stop or reduce the spam their users receive by every means possible.
It's very likely that you've received one of these emails before, right?
And it's also possible that you simply ignored it, or your email client stored it in the spam folder.
So with this definition of spam as an email or electronic mail that we have not requested, a key question arises.
► Spam vs. Phishing