What is my SMTP?

October 16, 2008 / Updated: August 15, 2019 / Lena Shore

What is an SMTP?

Your SMTP controls your outgoing mail. Your POP controls your incoming mail.

What is my SMTP?

Usually your SMTP contains your domain name and is formatted like this: smtp:YOURDOMAINNAME.com (i.e. smtp.lenashore.com) or this YOURDOMAIN.com (i.e. lenashore.com)

Sometimes your ISP (Internet Service Provider) will want you to use their smtp instead of your domain. For instance, say you get your internet from comcast.net, but you have a domain name of johnsmith.com. Comcast may not like you using smtp.johnsmith.com and would prefer smtp.comcast.net instead.

How can I find out what my SMTP is for my ISP?

To find your current ISP do one of the following:

  • Call your internet service provider (Bellsouth, Comcast, etc) and ask them for the SMTP.
  • Go to your internet service provider’s website and search for “SMTP”.
  • Look at the account information on an existing working email account to see what SMTP is being used.
  • Refer to the list below to help you find your service provider’s ISP.

Below is a list of some common ISP outgoing SMTP Servers. Some ISP’s do not allow their users to use a third party mail server to send outgoing mail. In that case you can use your ISP’s outgoing SMTP Server.

Adelphia mail.adelphia.net
Alltel mail.alltel.net
America Online (AOL) smtp.aol.com
Atlantic Broadband smtp.atlanticbb.net
AT&T (Broadband) mail.attbi.com
AT&T (Dialup) smtp1.attglobal.net
BellSouth mail.bellsouth.net
Charter Communications mail.charter.net
CBeyond (Atlanta) mail.atl.cbeyond.com
Comcast / ATTBI smtp.comcast.net
CompuServe 2000 smtp.cs.com
Covad smtp.covad.net
Cox East smtp.east.cox.net
Cox West smtp.west.cox.net
EarthLink mail.earthlink.net
ibm.net smtp1.ibm.net
Juno smtp.juno.com
Mindspring smtp.mindspring.com
Mpower Communications smtp.mpowercom.net
MSN smtp.email.msn.com
netcom.com smtp.ix.netcom.com
Netscape smtp.isp.netscape.com
Netzero smtp.netzero.net
PacBell mail.pacbell.net
Prodigy smtp.prodigy.net
PSINet bbr0-f1.sna.com
Road Runner smtp-server.<region>.rr.com
SBC Global smtp.sbcglobal.net
Speakeasy mail.speakeasy.net
SprintLink smtp.a001.sprintmail.com
SprintPCS smtp.sprintpcs.com
Verio mail.verio.net
Verizon outgoing.verizon.net or smtpout.verizon.net
XO Communications mail.njd.xo.com or smtp.concentric.net
Yahoo smtp.mail.yahoo.com

Lena Shore

Lena is a full-time freelancer and nerd that specializes in web development, graphic design, and illustration. She enjoys building things, learning new things, pursuing creative endeavors, and giving free advice.


  1. bachelors degree psychology on May 21, 2013 at 2:29 pm

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  2. bill on March 12, 2009 at 3:34 pm

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      Sure. Write something and submit for review!

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