How do I respond if my emails are throttled?
If mailbox providers feel skeptic of your email volume or sending practices, they may defer your emails.
This limiting of or delay in accepting emails is called email throttling.
When you send emails to your recipients, any of the following actions can happen to your emails:
- Delivered - They may get successfully delivered to your recipients' inboxes.
- Bounced - They may not be delivered to the recipient end and get returned with an error message stating reason for the bounce.
- Throttled - Your emails may not be accepted by the recipient system for some time and will wait in a queue. Zoho Marketing Automation will try sending the emails in queue to the recipient system again. This results in delayed delivery of your emails. Sometimes, the recipient system doesn't accept the emails in queue for a long time, and will bounce them instead.
Your emails may get throttled if:
- You're new to email marketing or use a new business domain and send emails beyond the threshold limit of the recipient systems. This may make your emails seem suspicious, as there's no history of recipients' previous responses for the sender domain.
- You have a negative response such as marking of spam, unsubscribes, and abuse complaints from your recipients in previous emails.
- Your previous emails have a high bounce rate.
- You send emails to spam traps set by that recipient system.
- Your email content and sending practices resemble spam.
Though the email restrictions set by recipient systems affect email deliverability, when you plan your emails based on best practices, you can avoid your emails getting throttled. In fact, you can even improve your contact engagement as an added benefit.
How to avoid email throttling
Targeting contacts
Filter frequently communicated contacts, those who are very interested in your emails, and those you are confident will have a positive response. Target these contacts first with your emails. When you're sure that your emails are not throttled and deliverability is not affected, you can gradually add the less interested contacts.
Warming up your domain with the recipient system
New sender domains are considered cold by mailbox providers (recipient systems). The recipient systems check email sending domains for previous fingerprints or conversation between the sender and recipients. When you send emails from a cold domain, recipient systems throttle or block the emails, or may even classify them as spam.
Distribute crowded contact base
If your mailing list has most of the recipients concentrated to a few recipient domains, and if those domains are throttling your emails, you should segment your list and distribute the email addresses from the crowded recipient domains to several segments.
For example, Patricia has most of her contacts from zylker.com, and zylker.com is throttling her emails if they're beyond 100 per day. So, she has divided her 1000 zylker.com recipient addresses to 10 different segments. These 10 different segments also include recipient email addresses from other recipient domains that don't throttle her emails.
Identify the recipient domains that throttle your emails and segment those email addresses into various lists, as described in the previous point.
Check bounce error messages in your campaign report. If there are error messages like "Too many emails in short duration", then schedule your emails to avoid email throttling.
Zoho CRM Training Programs
Learn how to use the best tools for sales force automation and better customer engagement from Zoho's implementation specialists.
Zoho DataPrep Personalized Demo
If you'd like a personalized walk-through of our data preparation tool, please request a demo and we'll be happy to show you how to get the best out of Zoho DataPrep.
- Zoho Workerly Home
- Forums
- Connect With Us:
- Zoho Recruit Home
- Forums
- Connect With Us:
New to Zoho CRM Plus?
Deliver unforgettable customer experiences
New to Zoho CRM Plus?
Deliver unforgettable customer experiences
New to Zoho Marketing Plus?
Everything you need to run your marketing
New to Zoho Marketing Plus?
Everything you need to run your marketing
You are currently viewing the help pages of Qntrl’s earlier version. Click here to view our latest version—Qntrl 3.0's help articles.
New to Zoho Survey?
Zoho Sheet Resources
Zoho Forms Resources
New to Zoho Sign?
Zoho Sign Resources
Sign, Paperless!
New to Zoho TeamInbox?
Zoho TeamInbox Resources
New to Zoho ZeptoMail?
Zoho DataPrep Resources
Design. Discuss. Deliver.
New to Zoho Workerly?
New to Zoho Recruit?
New to Zoho CRM?
New to Zoho Projects?
New to Zoho Sprints?
New to Zoho Assist?
New to Bigin?
Related Articles
Bounces
Bounces occur when sent emails cannot be delivered. Typically, the email server will send you an error message, detailing the reason for the bounce. To learn more about this mechanism, let's walk through the process of sending an email and where ...Eight frequent activities that affect email deliverability
Email deliverability is the ability to land emails in the inbox of your recipients. If your campaign's deliverability takes a hit, it might be due to certain email marketing practices you follow. Let's dive deep and learn about practices that affect ...Getting started with email deliverability
Identifying the needs and interests of contacts and conceptualizing email campaigns around those are part and parcel of a marketer's daily routine. Sometimes marketers may assume that crafting a compelling campaign alone will help them hit their ...How does spam traps affect your email deliverability
Spam traps are used to identify which marketers are sending spam. A spam trap looks like a standard email address, but doesn't respond to emails or sign up for mailing lists, so when it receives an email, the sender is identified as a spammer. ...How does a public domain sender address affects email deliverability
Whenever you send campaigns, they will be delivered to the receiving server of the respective mailbox provider. The receiving server will offer inbox placement after carefully scrutinizing the email. If the emails are from a source that the mailbox ...
New to Zoho LandingPage?
Zoho LandingPage Resources