| Messages | Bytes | Average | Sending host |
| 32 | 111KB | 3552 | local |
| 16 | 119KB | 7616 | mx2.freebsd.org |
| 2 | 42KB | 21KB | tram.compute.dc.uq.edu.au |
| 1 | 1489KB | 1489KB | bg4.exmail.qq.com |
| 1 | 147KB | 147KB | o166.ptr78.mail.beehiiv.com |
| 1 | 134KB | 134KB | o170.ptr9231.mail.beehiiv.com |
| 1 | 127KB | 127KB | mta3.communications.bestbuypromotions.ca |
| 1 | 118KB | 118KB | mail-westus3azacs10202047.outbound.protection.outlook.com |
| 1 | 108KB | 108KB | o1264.abmail.email.theguardian.com |
| 1 | 105KB | 105KB | pmta181-67.sailthru.com |
| 1 | 104KB | 104KB | mta237-168.sailthru.com |
| 1 | 103KB | 103KB | mailsrv4574.o-mx.com |
| 1 | 101KB | 101KB | o941.ecomm.lenovo.com |
| 1 | 101KB | 101KB | mail1.di.salemnewschannel.com |
| 1 | 97KB | 97KB | a15-15.smtp-out.amazonses.com |
| 1 | 91KB | 91KB | mta057119.mailing.arsenal.co.uk |
| 1 | 85KB | 85KB | mailsrv42137.o-mx.com |
| 1 | 82KB | 82KB | mail-westus3azacs10201004.outbound.protection.outlook.com |
| 1 | 72KB | 72KB | mta.eml.renodepot.com |
| 1 | 69KB | 69KB | o80.ptr4836.mail.beehiiv.com |
| 1 | 54KB | 54KB | av.d.mailin.fr |
| 1 | 32KB | 32KB | o48.ck.n.convertkit.com |
| 1 | 31KB | 31KB | smtp-soi-g14-140.aweber.com |
| 1 | 29KB | 29KB | (suitepmta134099.emsmtp.us) |
| 1 | 20KB | 20KB | talvi.dovecot.org |
| 1 | 18KB | 18KB | mail-southcentralusazon11021086.outbound.protection.outlook.com |
| 1 | 17KB | 17KB | mail-westcentralusazon11023090.outbound.protection.outlook.com |
| 1 | 17KB | 17KB | directmail.newspaperdirect.com |
| 1 | 17KB | 17KB | directmail4.newspaperdirect.com |
| 1 | 17KB | 17KB | newmta6-40.145.etransmail.com |
| 1 | 15KB | 15KB | train.compute.dc.uq.edu.au |
| 1 | 5050 | 5050 | smtp3.osuosl.org |
| 1 | 4592 | 4592 | (smtp3.osuosl.org) |
| 1 | 3917 | 3917 | bus.compute.dc.uq.edu.au |