What is warm-up process ?

  • Warmup process is a name given to the process to build a good reputation for IP address.
  • This Process involves sending regular but small campaigns over a period of time & gradually increasing the volume of emails as ISP’s begin to form a positive reputation for the IP address.
  • Once you have warmed up your IP address successfully, you can send out much higher email volume & get it through the ISP’s filter effective.
  • If you are using EasySendy Pro, then there is need to warmup the IP address of your email relay delivery server, like Amazon SES, Mandrill, SendGrid, Sparkpost, Leadersend, Elasticemail and MailGun.

Why it is needed to Warm up the IP?

  • Certainly, it seems easier to send all your normal traffic over a new IP. Ramping up of cold IP will require some changes to your sending schedule, but mostly it’s a minor inconvenience.
  • IP warming is only needed if you are using your own dedicated IP address to send out emails campaigns.
  • If we’re sending less than 10,000 emails per month then it is unlikely that ISP’s will be concerned with your deliverability and therefore IP warming is necessary. If too much volume is sent too quickly, than many of the ISP’s will get concerned & the mail server will be compromised, and they will most probably route the messages to the spam folder instead of Inbox.

How to do Warmup Process?

  • First check whether warm up of your IP is required or not, incase of shared ip address, like for Amazon SES, Sparkpost, slight warmup is required if you are observing low email open rate.
  • After that, ensure your Email List is strong enough i.e no purchased lists or emails from people who have not opted in.
  • Split your list into smaller Segments. This will help in staying under your locating devices until you make a good sender score.
  • Make sure that SPF record for your sending domain name is appropriately verified.
  • Send emails to the most active customers first. This helps in having less Email bounce and more expected to open your messages, both of which are more essential for warming up IP address.
  • The key to warm up the IP address is to spread out initial sends over a multiple days. For example, If you plan on sending 40,000 emails a week, you recommend that you split your lists into at least four sublists with limit of no more than 10,000 recipients in each list. Email only one subscriber lists per day over the first few days.
  • A good rule of thumb for larger ramp-ups is to start your sending at 10,000 prospects per day. Assuming your bounce rate stays below 0.5% and your spam complaint rate stays below 0.1% on those sends, you can safely double your sending per day over the next few weeks until your intended sending volume is reached.

 

IP Allocation and IP Warm-up Schedule

The warm-up schedule depends on the sending domain reputation, bounce reports, Spam marked, list age, list hygiene, user engagements, contents and domain distribution.
If you research over many internet sites, you will find the general warm-up schedule which is only applicable if you are  perfect with your sending domain reputation, Spam and bounce report, and list age. Which are generally not applicable for everyone. Here I am going to share the warm-up schedule for all factor of email reputation.

General Warm-up schedule
If your domain reputation is very good and your subscriber list is opt-in means there is only 1% bounce report and 0.1 Spam score, you can use this warm-up schedule.

IP Allocation IP Warmup Schedule 
No. of IPsTarget Daily VolumeDayDaily Volume
225,000125
250,000250
2100,0003100
3200,0004200
3500,0005400
31,000,0006500
41,500,00071500
42,000,00083000
62,500,00095000
63,000,0001010000
84,000,0001120000
85,000,0001240000
107,000,0001370000
1010,000,00014120000
1012,000,00015250000
1214,000,00016500000
1216,000,000171000000
1418,000,000181,500,000
1420,000,000192,000,000
1425,000,000203,000,000
1830,000,000215,000,000
1840,000,000227,500,000
1850,000,0002310,000,000
2060,000,0002412,000,000
2070,000,0002515,000,000
2480,000,0002620,000,000
2490,000,0002740,000,000
24100,000,0002880,000,000

New Sending Domain/Low reputation sending domain Warm-up schedule

If your domain reputation is low or you have new sending domain and your subscriber list is opt-in means there is only 1% bounce report and 0.1 Spam score, you can use this warm-up schedule.

IP Allocation IP Warmup Schedule 
No. of IPsTarget Daily VolumeDayDaily Volume
22500125
350,000250
4100,000380
6200,0004120
8500,0005200
101,000,0006300
141,500,0007500
162,000,0008700
172,500,00091000
183,000,000101200
204,000,000111500
225,000,000121800
247,000,000132000
2710,000,000142500
3012,000,000153000
3014,000,000164000
3216,000,000175000
3218,000,000187000
3220,000,0001910000
3625,000,0002012000
4030,000,0002115000
4240,000,0002217000
4550,000,0002320000
5060,000,0002425000
5470,000,0002530000
5880,000,0002635000
6290,000,0002740000
64100,000,0002850000