Re: incoming mail port 110 and 25?
Chip Old <fold <at> bcpl.net>
2005-07-31 02:48:36 GMT
On Sat, 30 Jul 2005 17:15 -0700, Jeff Lacki wrote:
> Hi, Im new to qpopper. Im running 4.0.8 on a fedora 3 box. After
> figuring most things out I think I have it working, to the extent that
> when I email from my off-site ISP to my fedora box, the incoming email
> seems to hit port 25, not 110 (as I have it configured to do via xinetd
> I thought 110 was the 'standard' pop port? Can someone explain this or
> point me to some docs?
When you send mail to the machine on which your POP3 server is running it
is the SMTP server software on port 25 that receives it, not the POP3
server on port 110. The POP3 server on port 110 is only responsible for
taking mail from the mail spool and uploading it to a POP3 client on your
PC (or whatever). It doesn't receive mail from POP3 clients or from other
mail servers, nor does it deliver mail to other mail servers. That is the
responsibility of the SMTP server on port 25.
Chip Old (Francis E. Old) E-Mail: fold <at> bcpl.net
BCPL Network Administrator Phone: 410-887-6180
BCPL.NET Internet Services Manager FAX: 410-887-2091
320 York Road
Towson, MD 21204-5179 US