What is Email Warming Up?
Are your Emails going to SPAM? Don’t worry, It's OK.
It is very common for emails to go land in the spam folder for a new sender with a new SMTP server (Email Server), new IP & Domain.
When you have a new Brand IP Address for your SMTP, this IP will have no Reputation on the internet, and ISPs (internet service providers) doest know this IP. SO IP warmup is the practice of building Your Reputation on The Internet by gradually increasing the volume of mail sent with your IP address according to a predetermined schedule.
When an ISP notices an email suddenly coming from a new IP address, they will immediately begin evaluating the traffic coming from that IP.
Since ISPs treat email volume as a key in determining spam, it is best to start sending a low email volume, then increasing up your way up to more significant amounts.
This gives the email providers a chance to carefully observe and analyze your sending habits and volumes and record how your recipients engage with your email.
In general, Warming up takes between 2-10 Weeks, according to your scenario and the number of emails you want to send per day.
How do ISPs evaluate your emails and Reputation?
When you start the warming-up process, ISPs will Evaluate your Reputation according to three Main Factors:
- Bounce Rate: When you send an email campaign, you need to ensure that your emails are valid emails, High bounce rate will destroy your reputation.
- Spam Traps: even a very low percentage of spam traps can blacklist you!
- Spammy Content: Your Message content is essential; ISPs will check if you are using any spammy keywords or blacklisted links.
- User Interaction: How Recipients are interacting with your emails, if they are reporting you as spam, then this is a real problem!
Warming Up IP in Action (Examples)
Ok, now that we have the big picture warming up SMTP, let’s go with some examples and real scenarios and understand how the operation works:
Please note: These sample schedules are intended to be a suggestion only. Every sender is different.
1- 1000 Emails Per day: this is not a big deal; you start by sending 20 emails the first day, then increase gradually to reach 1K in about 7-10 days. The Schedule is described in the following Table:
||Emails To Send
Warm-up IP Schedule Generator Tool
I always try to make things easy for everyone, especially beginners, so I developed the Free Email Warmup Generator Tool.
Select Your Email List Size, and Click Generate! And See the Magic
Email Volume and Timeline
For IP warm-up, the warmup schedule, and the Sending Volume differ for all senders.
The number of emails you send depends on your total email volume; some may require you to send 100 emails daily, and others may need 1M daily!
But in any case, you must send enough emails at enough frequency so that your email reputation can be tracked.
Also, You have to know something very important. Most reputation systems only store data for 30 days, so you should not go 30 days or more without sending on an IP. If you do, then you will need to warm it up again.
This is why I said first that warming up an IP is a continuous process.
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