Re: [toaster] Opening ports on router
On Apr 22, 2005, at 2:13 PM, Ryan Dorn wrote: It just kind of seemed odd to me that I had to leave SMTP open in order to receive messages, as I thought that was what POP3 was for. I was sending the mail from a yahoo address outside the network to an address on the toaster, and I checked the mail from my linux box using Thunderbird. As Bill stated, mail is delivered on port 25, and picked up on 110 (POP), 143 (IMAP), 993 (IMAP over SSL) or 995 (POP over SSL). If you will only pick up email from your home network, you won't have to open up 110, 143, 993 and 995 on your router. -- Tom Collins - [EMAIL PROTECTED] QmailAdmin: http://qmailadmin.sf.net/ Vpopmail: http://vpopmail.sf.net/ You don't need a laptop to troubleshoot high-speed Internet: sniffter.com
[toaster] Opening ports on router
Hey everyone, Just got the toaster installed and it works great. I don't know a whole lot about mail servers, but I do have one fairly simple question. Why must I have port 25 open on my router for my mail server to receive e-mail? It's not that big of a deal since I only have my domain name in rcpthosts, but it still strikes me as strange to have to have port 25 open to receive messages, as I would have thought 110 would be the only required port. My coworker and I were talking about this and he suggested that when a mail is sent, it scans the SMTP port on the remote computer to validate that it is indeed a valid mail server. Is this what happens normally, or am I missing something? (P.S. When I do have 25 open, the toaster works great.) __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
Re: [toaster] Opening ports on router
Ok, thank you for the quick response Bill. It just kind of seemed odd to me that I had to leave SMTP open in order to receive messages, as I thought that was what POP3 was for. I was sending the mail from a yahoo address outside the network to an address on the toaster, and I checked the mail from my linux box using Thunderbird. Once again, thanks for the help and the speedy response! Toaster is excellent. --- Bill Shupp <[EMAIL PROTECTED]> wrote: > Ryan Dorn wrote: > > Hey everyone, > > > > Just got the toaster installed and it works great. > I > > don't know a whole lot about mail servers, but I > do > > have one fairly simple question. > > > > Why must I have port 25 open on my router for my > mail > > server to receive e-mail? It's not that big of a > deal > > since I only have my domain name in rcpthosts, but > it > > still strikes me as strange to have to have port > 25 > > open to receive messages, as I would have thought > 110 > > would be the only required port. > > > > My coworker and I were talking about this and he > > suggested that when a mail is sent, it scans the > SMTP > > port on the remote computer to validate that it is > > indeed a valid mail server. > > > > Is this what happens normally, or am I missing > > something? > > > > (P.S. When I do have 25 open, the toaster works > great.) > > smtp uses port 25, pop is 110. If you want to > receive mail on this > system from a remote network, it will be done over > smtp. Picking up > your mail from this system is done via POP commonly. > > Bill > __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
