| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| email security open source | 1.83 | 0.9 | 5716 | 34 | 26 |
| 1.7 | 0.4 | 5773 | 51 | 5 | |
| security | 1.88 | 0.7 | 6461 | 30 | 8 |
| open | 1.12 | 0.9 | 6098 | 58 | 4 |
| source | 0.1 | 0.8 | 8181 | 87 | 6 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| email security open source | 0.62 | 0.7 | 9066 | 4 |
| open source email security gateway | 1.76 | 0.4 | 9441 | 30 |
| best open source email security gateway | 0.87 | 0.8 | 7586 | 27 |
| open source secure email | 0.85 | 0.9 | 5636 | 82 |
| open source secure email server | 1.61 | 0.5 | 268 | 75 |
| open source email software | 2 | 0.1 | 3874 | 48 |
| email server open source | 1.63 | 0.8 | 33 | 33 |
| open source email program | 2 | 0.6 | 1418 | 22 |
| open source email encryption software | 0.09 | 1 | 4656 | 61 |
| open source email server software | 1.5 | 0.9 | 6913 | 37 |
| open source email services | 1.87 | 1 | 1381 | 48 |
| open source email encryption | 0.4 | 0.7 | 5900 | 7 |
| open source encrypted email | 0.94 | 0.2 | 3209 | 100 |
| free open source email | 1.99 | 0.9 | 5667 | 8 |
| open source email for windows | 0.45 | 0.1 | 9800 | 53 |
| encrypted email server open source | 0.08 | 0.2 | 6988 | 43 |
| open source email server windows | 0.13 | 0.2 | 5808 | 15 |
