incoming (pop3): mail.yourdomain.whatever
outgoing (smtp): mail.yourdomain.whatever or YOUR ISP SMTP Service
There are some general things you will want to be aware of no matter which ISP you choose for smtp service. To be able to send mail through the server you must first be authorized. How do you get authorized? Very simply! You must first log into the server through your pop (email) account with your username and password using your favorite email client. After you logged in you have a period of 15 minutes to send mail. After this 15 minutes expires you will need to receive mail or authorize again. Here is a example:
POPAUTH is an addition to the current email system whereby sending of email through any given client server (commonly referred to as "relaying") is controlled by using the POP services to verify a user by username/password combination. This process is also known as POP-before-SMTP.
The following is a general overview of the operation of POPAUTH:
1) A user connects to their server to download their email. For this illustration, we will use user 'joe' on server 'myclient.com' with password 'joespassword'. The username/password/server information listed here is totally fictitious and used only for illustration purposes.
2) Using his username and password configured in his email software, 'joe' is authenticated by the POP server. 'joe' does not need to have email to be downloaded.
3) As soon as 'joe' is authenticated, his remote IP from which he is connecting is noted by the POP server.
4) joe's remote IP is now logged with the current time to a POPAUTH database. For the next 15 minutes, 'joe' is able to send email through the server freely.
5) At the end of 15 minutes, joe's IP is removed from the POPAUTH database. 'joe' is no longer authenticated to send email through the server. 'joe' must now check his email for download in order to re-authenticate himself with the email server in order to send email again. If 'joe' does not authenticate himself before sending he will receive a 'Relaying Denied' error message.
For the mobile user (a user who moves from place to place over any given period of time) this is a great advantage as complicated access files no longer need to be updated and maintained. The email server now maintains this information directly without any intervetion necessary. To send email after moving from one IP to another, the mobile user need only check for new mail to gain access to sending email.
The entire process is seamless and self-maintaining, further reducing maintainance overhead by the server owner.
Following the procedures above will help to minumize any general issues.
Here is a Current List of ISP's and their SMTP servers.
The SMTP server is a configuration setting within all pop E-mail applications. When using a pop E-mail application such as Eudora, Microsoft Outlook, Entourage, Mail, Netscape, Thunderbird etc. The SMTP server setting must be configured correctly or outgoing mail will not be sent. (Normally, checking mail will still work if the SMTP server is not configured correctly within your pop mail application).
Adelphia - mail.adelphia.net
America Online (AOL) smtp.aol.com
Atlantic Broadband - smtp.atlanticbb.net
AT&T (Broadband) - mail.attbi.com
AT&T (Dialup) - smtp1.attglobal.net
AT&T Worldnet - mailhost.worldnet.att.net or imailhost.worldnet.att.net
BCPL - mail.bcpl.net
Bellatlantic - gtei.bellatlantic.net or smtpout.verizon.net>
Bellatlantic.net - smtpout.bellatlantic.net
Bellsouth - mail.bellsouth.net
Bestweb - smtp.bestweb.net
BEV - smtp.bev.net
Blacksburg - smtp.blacksburg.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
Citizen's Internet - smtp.swva.net
Comcast - smtp.comcast.net
Compuserve - smtp.compuserve.com or smtp.site1.csi.com
Concentric.net - smtp.concentric.net
Covad - smtp.covad.net
Cox West- smtp.west.cox.net(west coast users)
Cox Central - smtp.central.cox.net (central users)
Cox East - smtp.east.cox.net(east coast users)
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 or smtp.earthlink.net
(International only) - ismtp.earthlink.net
Edge.net - mail.edge.net
Enter - smtp.enter.net
EROLS - mail.erols.com
Ezy - smtp.ezy.net
Flashcom - mail.flashcom.net or smtp.flashcom.net
Frontline.net - smtp.fcc.net
Full Channel - smtp.fullchannel.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
Integra - smtp.integra.net
Interaccess.com - smtp.interaccess.com
Internet America - mail.airmail.net
Internet Highway - smtp.ihwy.com
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
Netscape - smtp.isp.netscape.com
NetZero - smtp.netzero.net
NYU.edu - smtp.nyu.edu
OLG.com - mail.olg.com
Omega Communications- smtp.i-plus.net
OPTOnline Internet Service - mail.optonline.net
Pacbell - mail.pacbell.net
Patriot Media - smtp.patmedia.net
PeoplePC Online - mail.peoplepc.com
Pipeline - smtp.pipeline.com
Prodigy - smtp.prodigy.net
PSI.net - relay.smtp.psi.net
PTD.net - promail.ptd.net port 25
QIS - mail.qis.net
Qwest Internet Service - pop.dnvr.qwest.net
RCN - smtp.rcn.com
Rider.edu - enigma.rider.edu
RoadRunner - smtp-server..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 or smtpout.verizon.net
Wide Open West - smtp.mail.wideopenwest.com
XO Communications - mail.njd.xo.com or smtp.concentric.net
Yahoo - smtp.mail.yahoo.com
Ziplink - smtp.ziplink.net
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