| Messages | Bytes | Average | Sending host |
| 25 | 1571KB | 63KB | local |
| 2 | 148KB | 74KB | smtp4.osuosl.org |
| 2 | 23KB | 12KB | bus.compute.dc.uq.edu.au |
| 2 | 20KB | 10KB | mx2.freebsd.org |
| 1 | 3487KB | 3487KB | smtp3.osuosl.org |
| 1 | 119KB | 119KB | a13-113.smtp-out.amazonses.com |
| 1 | 111KB | 111KB | (a13-178.smtp-out.amazonses.com) |
| 1 | 94KB | 94KB | mail-southcentralusazacs10202068.outbound.protection.outlook.com |
| 1 | 92KB | 92KB | pmx3.hosttrik.com |
| 1 | 90KB | 90KB | pmta181-39.sailthru.com |
| 1 | 88KB | 88KB | a15-85.smtp-out.amazonses.com |
| 1 | 86KB | 86KB | mail-westusazacs10200056.outbound.protection.outlook.com |
| 1 | 58KB | 58KB | mx46.207.mailingtheplan.it |
| 1 | 24KB | 24KB | o9.em.brivitycma.com |
| 1 | 19KB | 19KB | mail-southcentralusazon11022128.outbound.protection.outlook.com |
| 1 | 19KB | 19KB | mail-eastus2azon11021086.outbound.protection.outlook.com |
| 1 | 18KB | 18KB | o6.p10.mailjet.com |
| 1 | 18KB | 18KB | mail-northcentralusazon11023130.outbound.protection.outlook.com |
| 1 | 18KB | 18KB | mail-southcentralusazon11021094.outbound.protection.outlook.com |
| 1 | 18KB | 18KB | mail-westus3azon11022087.outbound.protection.outlook.com |
| 1 | 18KB | 18KB | mail-westus2azon11020121.outbound.protection.outlook.com |
| 1 | 16KB | 16KB | (smtp1.osuosl.org) |
| 1 | 16KB | 16KB | smtp2-3261.email-labs.net |
| 1 | 14KB | 14KB | (bus.compute.dc.uq.edu.au) |
| 1 | 13KB | 13KB | tram.compute.dc.uq.edu.au |
| 1 | 9961 | 9961 | plane.compute.dc.uq.edu.au |