Every few years someone announces that email marketing is dead. It never is. What changes is that the bar for what gets opened and acted upon keeps rising, while the volume of marketing email people receive keeps going up. The businesses doing email marketing badly — generic blasts, no personalisation, irrelevant content — do get ignored. The ones doing it thoughtfully still see it as one of their highest-ROI marketing channels.
Here is what actually separates email campaigns that work from the ones that pile up unread.
The subject line is the whole game
Most marketing emails are never opened at all. The average open rate for marketing emails in India sits somewhere between 18 and 25 percent depending on the industry — meaning three out of four people on your list will never see the content you spent time writing. The only thing standing between your email and the trash folder is the subject line.
Subject lines that work tend to be specific rather than clever, short rather than long, and honest about what is inside. "Your invoice for June is ready" gets opened. "Exciting updates from us!!!" does not. "Three things to check before your next Google Ads campaign" gets opened by the right people. "Our monthly newsletter — Issue 14" does not give anyone a reason to click.
The counterintuitive truth is that a subject line that turns off half your list but gets 40 percent of the remainder to open and engage is better than a safe subject line that gets 20 percent of everyone to open and then ignore the content. Specificity filters for relevance.
Relevance matters more than frequency
A lot of small businesses send email too frequently with content that is not relevant to the recipient, then conclude that email does not work when open rates drop. The typical Indian consumer's inbox is full. What cuts through is not more email — it is email that is clearly useful to that specific person at that specific moment.
This means segmenting your list, even simply. If you are a clinic, a post-appointment follow-up message and a general promotional email are different communications for different purposes — sending them to the same undifferentiated list at the same cadence is a mistake. If you are a B2B service provider, clients in active projects and leads who have gone quiet need different messages.
What actually gets clicked
The emails that consistently get clicks tend to have one clear ask, not five. A single link, a single call to action, a single thing the recipient is supposed to do. "Read our blog post about GST software" with one button. Not three articles, a promotion, a new team member announcement, and a request for a review all in the same email. Every additional ask reduces the probability of any one of them being taken.
The list is everything
A small list of people who have genuinely opted in and are interested in what you do will consistently outperform a large list of contacts scraped, purchased, or added without explicit consent. Purchased email lists in India almost always hurt more than they help — high bounce rates, spam complaints, and deliverability damage that affects your ability to reach the people on your legitimate list.
Build the list slowly and properly: a sign-up form on your website with a clear value proposition, opt-ins at point of sale or service completion, and an occasional ask to existing customers who are already happy with you. One hundred genuinely interested subscribers is worth more than ten thousand unqualified ones.
Deliverability — the problem nobody thinks about until it is too late
You can write the perfect email with a great subject line and send it to a warm, engaged list — and it will still go to spam if your sending domain and infrastructure are not set up correctly. SPF, DKIM, and DMARC are three technical records that tell email providers your messages are legitimate. If these are not configured for your domain, your emails are far more likely to be filtered, regardless of their content. Your email marketing tool should walk you through this setup, and it is worth confirming it is done before sending your first campaign.
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