Affiliate Email Subject Lines: 60 Honest Examples

By the pprawat.com team

pprawat.com earns money from affiliate links in some of its guides and emails. If you buy through one, we may earn a commission at no extra cost to you.

Last checked 31 Oct 2026.

Your subject line decides whether an email gets opened or ignored. For affiliate emails, it also has a second job: it has to be honest. A subject line that tricks someone into opening might get one click, but it costs you trust, and it can break the rules. The same honesty applies inside the email, starting with a clear affiliate disclosure.

This guide gives you 60 subject lines sorted by the type of email you are sending, plus four before and after rewrites. You will also learn the official rules for subject lines, a simple formula for writing your own, and a quick test to run before you hit send.

The rules first: what official sources say

Before the examples, here is what the law and the big inbox providers say about subject lines. These rules shape every example below.

The FTC (US law). The CAN-SPAM Act covers commercial email. The FTC’s compliance guide says: “Don’t use deceptive subject lines. The subject line must accurately reflect the content of the message.” It also says “Don’t use false or misleading header information,” which covers your From, To, and Reply-To details. (Source: FTC, CAN-SPAM Act: A Compliance Guide for Business, last checked 31 Oct 2026)

Gmail. Google’s sender guidelines say the subject, headers, display names, and other parts of a message “should accurately represent the sender identity and message content, and shouldn’t be misleading.” They give a clear example: “don’t send messages with subject lines starting with Re: or Fwd: unless the messages are actual replies or forwards.” (Source: Google, Email sender guidelines, last checked 31 Oct 2026)

Yahoo. Yahoo’s sender best practices say: “Don’t use false or misleading header information or deceptive subject lines to hide, forge or misrepresent the sender or origin of the email.” (Source: Yahoo Sender Hub, Best Practices, last checked 31 Oct 2026)

Put simply: your subject line must match what is inside the email. If you keep that one rule, you avoid most problems.

Your sender name matters too

People see your sender name (also called the display name) right next to the subject line. Google’s guidelines say display names should be “a consistent, clear, and accurate statement of the sender’s identity, name and/or organization.” They also list names to avoid, such as “URGENT REQUEST” and “Last Chance,” and say the display name “should not include the recipient’s name.” (Source: Google, Email sender guidelines, last checked 31 Oct 2026)

Good choices for a beginner:

• Your site name, such as “pprawat.com”
• A team name, such as “The Checklist Team”
• Your brand plus a role, such as “Opt-in Tips from [Your Site]”

Pick one and keep it the same in every email. When readers recognize the name, they are more likely to open.

A simple formula for honest subject lines

Most good subject lines do one of three things:

1. Name the benefit. What will the reader get from this email?
2. Name the topic. What is this email about, in plain words?
3. Ask a real question. What is the reader wondering about?

Then check two things: Is it true? Is it clear? If both answers are yes, you have a usable subject line.

Keep them fairly short so they fit on a phone screen. Lead with the most important words, since long subject lines get cut off.

60 affiliate email subject lines by email type

Swap the bracketed parts for your own topic. Each one is written to match a specific kind of email, so only use it if your email really delivers what it says.

Delivering a free gift (welcome email)

1. Your [checklist name] is here
2. Here’s the free [guide] you asked for
3. Your download link (plus one quick tip)
4. Start here: your [topic] checklist
5. As promised: the [number]-step [topic] guide

Teaching a tip (no offer)

6. A 10-minute fix for [problem]
7. The one setting I check first in [tool]
8. Why your [thing] isn’t working (and what to try)
9. [Number] mistakes to skip when you [task]
10. Try this before you [common action]
11. A simple way to [result] this week

Asking a question

12. Quick question about your [topic]
13. What’s the hardest part of [task] for you?
14. Traffic, tech, or time?
15. Can I ask what you’re working on?
16. Which of these should I write about next?

Reviewing a product (contains an affiliate link)

17. My honest review of [product]
18. [Product]: who it’s for and who should skip it
19. What I liked (and didn’t) about [product]
20. [Product] vs [other product] for beginners
21. Is [product] worth it for a beginner?
22. I tested [product] for [task]. Here’s what happened.

Use the last one only if you really tested it. That is the point of honest subject lines.

Recommending a product (contains an affiliate link)

23. The tool I use for [task]
24. If you’re stuck on [problem], this may help
25. A [product type] worth a look
26. One resource for [goal]
27. My pick for [task] (with a heads up inside)

For number 27, the “heads up” is your affiliate disclosure. Telling people early that a link pays you a commission builds trust.

Real deadlines and launches

28. [Product] opens today
29. [Product] closes [day] at [time]
30. The [product] discount ends [day]
31. Last day for the [product] bonus

Only use these if the deadline is real and set by the seller. If the “deadline” moves or never happens, the subject line is not honest.

Follow-ups

32. Did you get a chance to try [step]?
33. A follow-up on [last topic]
34. The part I left out yesterday
35. Answers to your [product] questions

Re-engaging quiet readers

36. Still want emails about [topic]?
37. Should I keep sending these?
38. Want to stay on the list?

These work well with a clear “yes, keep me” link and an easy unsubscribe link.

Plain and friendly (works anytime)

39. This week’s [topic] tip
40. [Topic] notes for [day]

Launches and bonuses (only when they are real)

41. New: [product] for [task] is out
42. What’s inside [product] (a quick tour)
43. The bonus I’m adding to [product]
44. [Product] launch: who it’s for in one line
45. Prices for [product], side by side

Your own results (only if they happened)

46. What happened when I tried [method]
47. My first [number] days with [tool]
48. What worked, and what didn’t, in my [task] test
49. The setup I use for [task], step by step

Beginner questions

50. Do you need a website for [goal]?
51. Free vs paid [tool type]: what changes
52. How long does [task] take a beginner?
53. The first thing to set up in [tool]
54. [Topic] words, explained in plain English

Comparisons and roundups

55. [Product A] or [Product B]? A plain answer
56. 3 [tool type] for beginners, compared
57. The cheapest way to start [task]
58. [Number] free [tool type] worth trying

Timely and seasonal

59. Your [month] [topic] checklist
60. Before [holiday] sales: [topic] tips

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Before and after: four rewrites

Here is how small changes turn a pushy line into an honest one that still makes people curious.

Before	After	What changed
“You won’t BELIEVE this tool”	“The tool I use to [task] in 10 minutes”	Names the topic and the benefit instead of hype.
“Re: our chat”	“A follow-up on [last topic]”	Drops the fake reply tag.
“Last chance!!!”	“[Product] bonus ends Friday at 9pm”	A real, specific deadline instead of vague pressure.
“Make $500 this week”	“How [product] handles [task]”	Removes an income claim and says what the email covers.

Subject lines to avoid

These are common in affiliate marketing, and they are best skipped.

Avoid	Why	Try instead
“Re: your account”	Fake reply. Gmail’s guidelines say not to start with Re: unless it really is a reply.	“Your [topic] checklist”
“Fwd: you need to see this”	Fake forward, same problem.	“A tool I use for [task]”
“Your payment is waiting”	Implies money is owed to the reader. Misleading.	“A free guide to [topic]”
“Get rich by Friday”	An income claim. You can’t promise results.	“How [product] handles [task]”
“URGENT!!!”	Vague and pushy. Says nothing about the content.	“[Product] closes Friday at 9pm”
“[First name], open now”	Pressure with no topic.	“[First name], a quick [topic] tip”

A note on first names: using a reader’s first name in the subject line is fine if it is honest. Just don’t put their name in your sender name, as Google’s guidelines say not to. (Source: Google, Email sender guidelines, last checked 31 Oct 2026)

The preview text: your second subject line

Most inboxes show a short line of text after the subject. This is called preview text or preheader text. If you don’t set it, the inbox usually shows the first words of your email, which might be something like “View in browser.”

Use the preview text to finish the thought:

• Subject: “My honest review of [product]”
  Preview: “Who it suits, who should skip it, and the refund terms.”
• Subject: “Quick question about your [topic]”
  Preview: “Just hit reply with one word.”

Most email tools have a field for preview text in the email settings.

Testing your subject lines

Many email tools let you send two subject lines to small parts of your list and then send the winner to everyone else. This is called an A/B test.

If your tool has it, try this:

1. Write two subject lines for the same email. Change only one thing, such as the question form versus the plain form.
2. Send each one to a small share of your list.
3. Look at clicks, not just opens. A subject line that gets opens but no clicks may be promising something the email does not deliver.
4. Keep notes. After several tests, you will see what your readers respond to.

With a small list, results can swing a lot from one email to the next. Look for patterns over many sends, not single wins.

Your pre-send checklist

Before you send any affiliate email, read your subject line and ask:

• Does it match what is inside the email?
• Would a reader feel tricked after opening?
• Is it free of fake “Re:” or “Fwd:” tags?
• Is any deadline real?
• Is it free of income claims or promises?
• Is my sender name clear and the same as usual?
• Did I set the preview text?

And inside the email, remember the CAN-SPAM basics from the FTC’s guide: identify the message as an ad when it is commercial, include your valid physical postal address, and give a clear way to opt out. The guide says you must honor an opt-out “within 10 business days.” (Source: FTC, CAN-SPAM Act guide, last checked 31 Oct 2026)

FAQ

How long should an affiliate email subject line be?
Short enough to read on a phone at a glance. Put the key words first in case the end gets cut off. Many good subject lines are just four to eight words.

Should I put the product name in the subject line?
If the email is about that product, yes. It is honest and it tells the reader what to expect. People who open already know the topic, which tends to bring better clicks.

Can I use emojis in subject lines?
You can, if they fit your style and don’t replace real words. Google’s guidelines do say not to use emojis in your display name to imitate graphic elements, so keep them out of the sender name. (Source: Google, Email sender guidelines, last checked 31 Oct 2026)

Do I need to say “ad” in the subject line?
The FTC’s CAN-SPAM guide says a commercial message must clearly disclose that it is an advertisement, but it does not say this must be in the subject line. Many senders put the disclosure in the email body, near the link. (Source: FTC, CAN-SPAM Act guide, last checked 31 Oct 2026)

Is a curiosity subject line like “Oops” okay?
Only if the email really is about a mistake or correction. If it is a sales email pretending to be a mistake, it does not match the content, which goes against the FTC’s rule that subject lines must accurately reflect the message.

Wrap-up

Good affiliate email subject lines are honest first and catchy second. Match the subject to the content, keep your sender name steady, skip fake replies and fake deadlines, and set your preview text. Start with the 60 examples above, adapt them to your topic, and keep notes on what your readers open and click.

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