| Carrier |
Sever Address |
| Adelphia |
mail.adelphia.net |
| Atlantic Broadband |
smtp.atlanticbb.net |
| AT&T (Broadband) |
mail.attbi.com |
| AT&T (Dialup) |
smtp1.attglobal.net |
| AT&T Worldnet |
mailhost.worldnet.att.net / imailhost.worldnet.att.net |
| BCPL |
mail.bcpl.net |
| Bellatlantic |
gtei.bellatlantic.net / smtpout.verizon.net |
| Bellatlantic.net |
smtpout.bellatlantic.net |
| Bellsouth |
mail.bellsouth.net |
| Bestweb |
smtp.bestweb.net |
| Blazenet |
smtp.blazenet.net |
| Cable One |
mail.cableone.net |
| CAIS |
smtp.cais.net |
| CAPU |
smtp.capu.net |
| Charm.net |
smtp.charm.net |
| Charter Communications |
smtp.charter.net |
| Comcast |
smtp.comcast.net |
| Compuserve |
smtp.compuserve.com / smtp.site1.csi.com |
| Concentric.net |
smtp.concentric.net |
| Covad |
smtp.covad.net |
| Cox West |
smtp.west.cox.net |
| Cox Central |
smtp.central.cox.net |
| Cox East |
smtp.east.cox.net |
| Cox Business |
smarthost.coxmail.com |
| Crosslink |
smtp.crosslink.net |
| DCANET |
smtp-relay.dca.net |
| Delmarva Online |
mail-gw.dmv.com |
| Delta Net |
smtp.deltanet.com |
| Direcway |
smtp.direcway.com |
| DSL Extreme |
smtp.dslextreme.com |
| Earthlink Network |
mail.earthlink.net / smtp.earthlink.net |
| Earthlink Network (International) |
ismtp.earthlink.net |
| Edge.net |
mail.edge.net |
| Enter |
smtp.enter.net |
| EROLS |
mail.erols.com |
| Ezy |
smtp.ezy.net |
| Flashcom |
mail.flashcom.net / smtp.flashcom.net |
| Frontline.net |
smtp.fcc.net |
| Gateway.net |
smtp.gateway.net |
| GTI |
mail.gti.net |
| HotMail |
mail.hotmail.com |
| IBM Global net |
smtp1.ibm.net |
| ioNet Inc. |
mail.ionet.net |
| Interaccess.com |
smtp.interaccess.com |
| Internet America |
mail.airmail.net |
| ITOL |
mail.itol.com |
| Juno |
smtp.juno.com |
| Mediacom |
mail.mchsi.com |
| Mediaone.net |
smtp.ce.medione.net |
| MegaPath |
mail.megapathdsl.net |
| MCI |
mailrelay.mciworldcom.net / mailrelay.internetmci.com |
| Mindspring |
smtp.mindspring.com |
| MSN |
smtp.email.msn.com |
| Nauticom |
mail.nauticom.net |
| Netcom |
smtp.ix.netcom.com |
| Netcom (Canada) |
smtp.netcom.ca |
| NetZero |
smtp.netzero.net |
| NYU.edu |
smtp.nyu.edu |
| OLG.com |
mail.olg.com |
| OPTOnline Internet Service |
mail.optonline.net |
| Pacbell |
mail.pacbell.net |
| Patriot Media |
smtp.patriot.net |
| Pipeline |
smtp.pipeline.com |
| Prodigy |
smtp.prodigy.net |
| PSI.net |
relay.smtp.psi.net |
| PTD.net |
mail.ptdprolog.net |
| QIS |
mail.qis.net |
| Qwest Internet Service |
pop.dnvr.qwest.net |
| RCN |
smtp.rcn.com |
| Rider.edu |
enigma.rider.edu |
| RoadRunner |
smtp-server.your-region.rr.com |
| SBC Global |
smtp.sbcglobal.net |
| SBC Global Yahoo |
smtp.sbcglobal.yahoo.com |
| Smallville Communications |
mail.toto.net |
| SNiP |
mail.snip.net |
| Spectrum DSL |
mail.webstable.com |
| SprintLink |
smtp.a001.sprintmail.com |
| Sprynet |
m6.sprynet.com |
| Starpower |
smtp.starpower.net |
| Sympatico |
mailhost.sk.sympatico.ca |
| UMBC |
smtp.gl.umbc.edu |
| USA.NET |
mail.netaddress.usa.net |
| US Internet |
smtp.usit.net |
| UUNet |
mail.uu.net |
| Verizon Internet Services |
outgoing.verizon.net / smtpout.verizon.net |
| Wide Open West |
smtp.mail.wideopenwest.com |
| XO Communications |
mail.njd.xo.com / smtp.concentric.net |
| Yahoo! |
smtp.mail.yahoo.com |
| Ziplink |
smtp.ziplink.net |
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