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Here are the current subscriber signup and engagement statistics for the Spam Resource weekly email newsletter, powered by Wombatmail. (Sign up for the newsletter here.)


Unique Opens By Campaign ( Day of send | Day plus after )
792
695
59%
OR
2-03
743
622
55%
OR
2-10
733
597
54%
OR
2-17
741
632
55%
OR
2-24
743
629
52%
OR
3-03
721
612
51%
OR
3-10
844
736
60%
OR
3-17
825
713
58%
OR
3-24
758
649
54%
OR
3-31
763
660
53%
OR
4-07
784
667
54%
OR
4-14
772
629
53%
OR
4-21
764
637
53%
OR
4-28
780
655
52%
OR
5-05
782
680
52%
OR
5-12
760
650
51%
OR
5-19
779
642
51%
OR
6-02
758
629
49%
OR
6-09
766
660
50%
OR
6-16
741
617
48%
OR
6-23
815
692
53%
OR
6-30
743
588
47%
OR
7-07
729
549
46%
OR
7-09
815
653
51%
OR
7-14
857
737
54%
OR
7-21
860
741
54%
OR
7-28
813
687
50%
OR
8-04
785
672
48%
OR
8-11
732
598
45%
OR
8-18
756
660
46%
OR
8-25
Click on a date above to view the content of a specific campaign.
Email Interactions by Month (Non-Unique)
1710

Apr
2023
1712

May
2023
2302

Jun
2023
2528

Jul
2023
2683

Aug
2023
2156

Sep
2023
3185

Oct
2023
2562

Nov
2023
3462

Dec
2023
4776

Jan
2024
3632

Feb
2024
3728

Mar
2024
4579

Apr
2024
3880

May
2024
4450

Jun
2024
5821

Jul
2024
4649

Aug
2024
5411

Sep
2024
5252

Oct
2024
5792

Nov
2024
4236

Dec
2024
6020

Jan
2025
5380

Feb
2025
6647

Mar
2025
6045

Apr
2025
4565

May
2025
6911

Jun
2025
7964

Jul
2025
6076

Aug
2025
133

Sep
2025

List Size
456

Apr
2023
475

May
2023
489

Jun
2023
520

Jul
2023
547

Aug
2023
575

Sep
2023
616

Oct
2023
648

Nov
2023
670

Dec
2023
712

Jan
2024
744

Feb
2024
764

Mar
2024
807

Apr
2024
870

May
2024
925

Jun
2024
967

Jul
2024
1019

Aug
2024
1100

Sep
2024
1166

Oct
2024
1210

Nov
2024
1268

Dec
2024
1307

Jan
2025
1339

Feb
2025
1403

Mar
2025
1437

Apr
2025
1480

May
2025
1518

Jun
2025
1576

Jul
2025
1620

Aug
2025
1621

Sep
2025

Email Interactions by Day (last 30 days)
24

8/03
1160

8/04
206

8/05
69

8/06
65

8/07
28

8/08
31

8/09
30

8/10
1081

8/11
174

8/12
79

8/13
45

8/14
61

8/15
49

8/16
27

8/17
970

8/18
187

8/19
109

8/20
34

8/21
48

8/22
25

8/23
16

8/24
1050

8/25
149

8/26
71

8/27
48

8/28
36

8/29
21

8/30
131

8/31
133

9/01
Click on a (linked) date above to view the content of a specific campaign.
Top 5 MX Domains
  • yahoodns.net (2.654%)
  • pphosted.com (2.901%)
  • mimecast.com (3.209%)
  • outlook.com (15.67%)
  • google.com (61.85%)
     
  • Other (13.716%)
Based on current subscriber count.

New Subscribers by Day (last 30 days)
1

8/03
3

8/04
2

8/05
1

8/06
3

8/07
1

8/08
2

8/09
1

8/10
1

8/11
2

8/12
1

8/13
2

8/14
0

8/15
1

8/16
0

8/17
2

8/18
3

8/19
0

8/20
4

8/21
2

8/22
2

8/23
0

8/24
1

8/25
1

8/26
3

8/27
2

8/28
0

8/29
0

8/30
0

8/31
1

9/01

Unsubscribes by Day (last 30 days)
0

8/03
3

8/04
0

8/05
0

8/06
0

8/07
0

8/08
0

8/09
0

8/10
3

8/11
0

8/12
0

8/13
0

8/14
0

8/15
0

8/16
0

8/17
2

8/18
0

8/19
0

8/20
0

8/21
1

8/22
0

8/23
0

8/24
2

8/25
0

8/26
0

8/27
0

8/28
0

8/29
0

8/30
0

8/31
1

9/01

Run at: Mon Sep 1 18:18:17 CDT 2025