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Questions tagged [pop3]

POP3 stands for Post Office Protocol used by e-mail clients to retrieve messages from a remote e-mail server.

As well as being supported by local e-mail clients POP3 is also supported by most webmail services such as Hotmail, Gmail and Yahoo! Mail.

POP3 is just one communications protocol on the web. Others include:

  • Transmission Control Protocol (TCP)
  • User Datagram Protocol (UDP)
  • Internet Control Message Protocol (ICMP)
  • Hypertext Transfer Protocol (HTTP)
  • File Transfer Protocol (FTP)
  • Internet Message Access Protocol (IMAP)

POP3 on Wikipedia

243 questions
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Dovecot removing my mails

Why is dovecot removing my mails? I have setup an SQL database according to the Dovecot information, but I get this in my logs: May 14 14:23:53 alpha postfix/smtpd[16436]: Anonymous TLS connection established from…
www.data-blogger.com
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SBS 2003; Exchange 2003 can't receive mails without SMTP connection but without POP3 connector

i hope you can help. I'm losing my mind. I'm not a specialist in SBS but i have a huge problem. I wanted to replace the mircosoft pop3-connector with popcon because i was told that several mails could not be received. So i installed popcon and…
Henny
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Cannot Connect to POP Email Server via Third-Party Mail Client

I am trying to set up a POP email account via a third-party mail client in my office and can't do it. I have tried both Apple's Mail app and Mozilla Thunderbird, but I keep getting told that I have incorrect login information, despite the fact that…
RBergs
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Forwarding a specific email address

We have a server running Windows 2003 with IIS SMTP installed for sending emails and POP3 Service to receive emails. We would now like to forward one of the email accounts (support@myDomain.com) to a completely new mail address hosted on another…
David
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Email client that allows adding pop account from cmd?

I am looking for an email client that allows you to add all pop params: email, server, password etc from cmd At the moment our company uses OE but the ability to add a password is not there (the registry wants it as a REG_BINARY and even then points…
Myles Gray
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Mail server: can't connect via POP/IMAP

I've followed this guide on setting up a mail server on my dedicated server. I've been able to send mails from the php application I'm using and the linux commandline (using telnet, php, etc). The problem is that I cannot connect to the server via…
MelkerOVan
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Email Disappears between IMAP and POP

I have a client who has an online store, and receives order notifications by email. Their order emails are flowing into their mailbox on the server, but never show up in Outlook. Their Outlook is configured as POP, I have reset the mailbox password…
LuckySpoon
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What happens if you have one imap client and one pop client?

I have a mailbox on my server which accepts POP and IMAP connections. If I connect one remote client via POP and another remote client via IMAP, what will happen? Will the emails remain on the server or will they be removed to the POP client?
Mazatec
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Postfix POP3 NOQUEUE: reject: RCPT error

I am getting an NOQUEUE: reject: RCPT error when trying to send mail via POP3 and Postfix (note: IMAP works fine). Feb 21 06:57:04 r2d2 dovecot: pop3(br@telecomm.com): Disconnected: Logged out top=0/0, retr=0/0, del=0/0, size=0 Feb 21 06:57:05 r2d2…
mine
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Which server software and configuration to retrieve from multiple POP servers, routing by address to correct user

I am setting up a small email server on a Debian machine, which needs to pick up mail from a variety of POP servers and figure out who to send it to from the address, but I'm not clear what software will do what I need, although it seems like a very…
rolinger
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Linux Postfix Setup on a fresh VPS

I've launched a new VPS with CentOS 5. It's pretty skeletal, nothing setup. I'm trying to configure my mail server to handle my email: contact@domainname.com My DNS settings live on GoDaddy.com. I have set up a contact name under the MX settings…
Atticus
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How can I configure multi domain IMAPS POPS and SMTPs with single SSL Certificate

If I have 3 domains hosted on single linux based mail server that are domain1.com, domain2.com and domain3.com.and I have *.domain1.com signed ssl certificate. Is there way I can use the same single ssl certificate for all domains for services…
gaurav9
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How to find old email accounts in imap?

I have a webmail with 90.000 imap accounts I'm trying to delete old email accounts (for example : accounts that has not been used for 1 year) this link may help to best answer: http://www.dovecot.org/list/dovecot/2011-January/056320.html os : centos…
محمد علی پور فتحکوهی
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Two servers mails

is that it is possible to have two mail servers in parallel, ie a primary through which mails are routed to the outside and a secondary for the exchange of mails locally. and the two servers are connected. In the secondary server was a copy of…
user165158
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The difference between hosting's pop and Gmail's

I've just tried to pop emails from my own hosting to Outlook. I found that after Outlook did a pop, emails in my hosting are gone. This is not like Gmail does for pop. I'm curious if there is a setting for this. My hosting's console is cPanel and…
Jeaf Gilbert
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