Alat percuma

Kalkulator Email Bounce Rate

Masukkan bilangan e-mel dihantar dan bounced untuk kira bounce rate. Lihat sama ada kadar anda boleh diterima, dan dapatkan cadangan untuk tingkatkan deliverability.

Kira bounce rate anda

Jumlah e-mel dihantar

Jumlah bounced

Optional: Break down by bounce type

Hard bounce

Soft bounce

Understanding Email Bounce Rates

Your email bounce rate measures the percentage of sent messages that could not be delivered to the recipient's mail server. Bounces are a normal part of email sending — some addresses become invalid over time, mailboxes fill up, and servers go offline. But when your bounce rate climbs too high, it signals a list quality problem that can damage your sender reputation and affect inbox placement for your entire list.

The industry standard formula is simple: divide the number of bounced messages by the total number sent, then multiply by 100 to get a percentage. A rate under 2% is healthy, 2-5% is a warning zone, and above 5% is dangerous territory where email service providers start throttling or suspending accounts.

Hard Bounces vs Soft Bounces

Not all bounces are equal. Hard bounces are permanent failures: the email address does not exist, the domain is invalid, or the recipient server has permanently refused delivery. These addresses should be removed from your list immediately and never retried. Sending again to hard-bounced addresses is a clear signal of poor list hygiene that damages your reputation with mailbox providers.

Soft bounces are temporary failures: the mailbox is full, the server was temporarily unavailable, or the message was too large. Most email service providers retry soft bounces automatically for a few days. If an address continues to soft bounce over multiple campaigns, treat it like a hard bounce and remove it.

Industry Bounce Rate Benchmarks

Bounce Rate	Status	Action
Under 2%	Healthy	Maintain regular list cleaning cadence.
2% to 5%	Warning	Clean the list before next send. Verify new sign-ups at point of entry.
Above 5%	Dangerous	Pause sending. Verify the entire list before resuming. Review list acquisition sources.

How to Reduce Your Email Bounce Rate

The most effective long-term strategy for low bounces is proactive list verification. Checking every address before it enters your list — at sign-up forms, data imports, and CRM syncs — prevents invalid addresses from accumulating in the first place.

Verify at point of entry: Use the email validation API to check addresses as they are submitted in forms and sign-up flows.
Clean existing lists: Run your full contact database through bulk email verification before major campaigns.
Remove hard bounces immediately: Configure your ESP to automatically suppress hard-bounced addresses and never retry them.
Use double opt-in: Requiring subscribers to confirm their address via a confirmation email eliminates typos and fake sign-ups before they cause bounces.
Clean regularly: Email addresses decay at roughly 20-30% per year as people change jobs, switch providers, and abandon inboxes. Schedule verification runs quarterly at minimum.

The Sender Reputation Impact of High Bounces

Gmail, Outlook, Yahoo, and other major mailbox providers track sender behavior in real time. A consistently high bounce rate signals that you are not maintaining your list carefully, which erodes trust. Once your reputation drops, even well-formed messages with perfect authentication may land in spam or be rate-limited. Rebuilding sender reputation after a significant drop can take weeks of careful, low-volume sending with strong engagement signals.

The best time to address bounce rate is before it becomes a problem. Use the email checker to verify individual addresses, or explore pricing to find the right plan for your list size and sending volume.

Soalan lazim

1. Apakah email bounce rate yang baik?

Penanda aras industri di bawah 2%, dengan amalan terbaik di bawah 1%. Kebanyakan penyedia e-mel mula menanda akaun apabila bounce rate melebihi 2% hingga 5%. Untuk e-mel transaksi, bounce rate sepatutnya ideal di bawah 0.5%.

2. Apakah perbezaan hard bounce dan soft bounce?

Hard bounce ialah kegagalan penghantaran kekal — alamat tidak wujud, domain tiada pelayan mel, atau pelayan penerima menolak alamat secara kekal. Soft bounce ialah kegagalan sementara — peti mel penuh, pelayan sementara down, atau mesej terlalu besar. Buang hard bounce serta-merta; pantau soft bounce merentas beberapa kempen sebelum membuangnya.

3. Bagaimana cara mengurangkan email bounce rate?

Kaedah paling berkesan: sahkan alamat e-mel sebelum menambah ke senarai dengan perkhidmatan pengesahan e-mel; gunakan double opt-in; bersihkan pelanggan tidak aktif secara berkala; buang hard bounce selepas setiap kempen; dan jangan sekali-kali beli atau scrap senarai e-mel — sentiasa mengandungi ramai alamat tidak sah.

4. Adakah bounce rate tinggi boleh menggantung akaun saya?

Ya. Kebanyakan ESP mempunyai ambang automatik. Mailchimp menggantung sekitar 2%. SendGrid memberi amaran pada 5% dan menggantung lebih tinggi. Klaviyo mengesyorkan kekal di bawah 0.08% untuk penghantaran optimum. Gmail dan Yahoo juga menghukum penghantar dengan bounce rate tinggi di peringkat infrastruktur, menurunkan deliverability sebelum ESP bertindak.

5. Bagaimana mengira email bounce rate?

Email bounce rate = (Jumlah bounce / Jumlah e-mel dihantar) × 100. Contoh: jika anda hantar 10,000 e-mel dan 250 bounce, bounce rate ialah (250 / 10,000) × 100 = 2.5%. Kalkulator ini membuat kiraan dan memecahkan hard serta soft bounce jika anda ada data tersebut.

6. Patutkah saya hantar semula ke alamat soft-bounced?

Ya, sekali atau dua kali. Soft bounce ialah kegagalan sementara dan alamat mungkin sah. Kebanyakan ESP cuba semula secara automatik 24 hingga 72 jam. Jika alamat soft bounce merentas 2 hingga 3 kempen dalam beberapa minggu, anggap sebagai hard bounce dan buang daripada senarai aktif.