Server Fault Stack Exchange
Server Fault Stack Exchange

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

247 questions
1
vote
3 answers

Simplest way to expose UNIX mailboxes via IMAP or POP3 on RHEL 5.6

We've got a web server running RedHat Enterprise Linux 5.6, and it has all the usual local UNIX mailboxes. As is typical, the root mailbox gets all the cron output, logwatch results, etc. I'd like an easier way to keep an eye on this mailbox besides…
db2
  • 2,180
  • 3
  • 15
  • 19
1
vote
1 answer

How can I tell who is using POP3/SMTP/IMAP over SSL and who isn't?

I need to determine which end users to contact, and ask them to fix their configuration or upgrade to something that supports SSL. I don't want to send a broad email and shut off the service without knowing who is affected. How do I determine who is…
makerofthings7
  • 8,911
  • 34
  • 121
  • 197
1
vote
2 answers

Maildir and users

I have pop3 local server. I want to use mail storage - Maildir format. And i have question: Maildir structure: Maildir tmp cur new Is it for one user? If i have 2 users in my pop3 server, how can pop3 server explain to mail client…
shk
  • 183
  • 2
  • 13
1
vote
1 answer

POP3 Mail Account - Record of when accessed

I have a number of machines that access the same pop3 account. Does a system/server usually keep a record of when the mail account was accessed? If so what other information is usually recorded? The ip address of the machine used to access? The mac…
Chin
  • 115
  • 4
1
vote
1 answer

Recommend a reasonably priced email provider?

We have around 50 domains that aren't core/key business but ideally we want to be able to have the MX records pointing to someone to accept mail for the following: abuse@ and postmaster@ for all the domains. various forwarding aliases i.e. sales@…
flooble
  • 2,364
  • 8
  • 28
  • 32
1
vote
2 answers

Changing POP Emails To Exchange

What I have is my emails going to my domain name, "DOMAIN1.com.au". I have setup a Server 2003 with Exchange 2003 on a test computer. I have created a domain on this computer, "DOMAIN2". Could someone please explain the process, start to finish, of…
The Woo
  • 579
  • 6
  • 21
  • 39
1
vote
3 answers

Can Exchange be forced to keep all mail?

I have an Exchange 2003 box that is read by an old POP3 application that has no configurable options apart from server/username/password, and it's deleting the old messages from the mailbox after it has finished. Is it possible to force Exchange to…
Mark Henderson
  • 68,823
  • 31
  • 180
  • 259
1
vote
2 answers

Can't log into POP3 account using Exim/Dovecot mail server (debian)

I'm trying to set up a mail server for our dedicated server, and the only thing remaining that doesn't work is the POP login. The outlook dialog box just keep asking me for the right user name/password. Here's the output from tailf -f…
Nicolas
  • 454
  • 2
  • 6
  • 16
1
vote
2 answers

POP3 authentication using email address in Exchange

I'm running an Exchange 2010 server. I need to allow POP3 authentication using an email address as the user ID instead of the domain username. Here's an example: AD Domain: domain.local Email domain: domain.com Username: johndoe email…
Jason Berg
  • 19,084
  • 6
  • 40
  • 55
1
vote
2 answers

Silent Outlook popups regarding self-signed certificate when connecting to pop3-ssl server

When MS Outlook (2003/2007/2010) connect to pop3-ssl server and the server certificate is selfsigned it opens a dialog whether or not user wants to accept it. Is it possible to suppress this message like it is with Thunderbird?
moo
  • 311
  • 1
  • 8
1
vote
3 answers

Connecting to Exchange Server 2003 over POP using openssl s_client

I'm trying to fetch emails programmatically from Exchange 2003 over POP. As a proof of concept I'm trying to connect using openssl s_client. I've started the POP service on my Exchange server. Trying to connect using openssl s_client -connect…
Andreas Jansson
  • 113
  • 1
  • 9
1
vote
1 answer

Unable to check mail from other accounts in Gmail using Dovecot/POP3

I have a VPS running on AlmaLinux. For SMTP, I use sendmail, which successfully sends and received emails for both of my domain names. I have Dovecot set up to handle IMAP/POP3. I want to allow a Gmail account to get emails from one of my domain…
Eric Jonas
  • 13
  • 2
1
vote
0 answers

Office 365 with SSO, but needs email to be accessed via POP and send mails via SMTP

We are moving from Godaddy to Office 365. Many of our staff use Thunderbird and a few use Gmail to read office emails (collection emails via POP). Office 365 uses SSO by OneLogin to authenticate users. After we move to Office 365 we still want users…
Mathew Paret
  • 11
  • 2
1
vote
1 answer

Fetchmail does not use the indicated protocol

I'm trying to setup fetchmail for download some mail from gmail using pop3. The problem, as you can see, is that fetchmail instead of use the pop protocol will use imap. For being sure to not have commit any error during the configuration i will…
DottorBooom
  • 41
  • 6
1
vote
1 answer

Clarification on the configuration of a mail server

I would like to start by saying that I have not seen any other forums or posts that clearly explain this thing. If there are, my poor English skills probably didn't make me understand the solution clear. As you already understood, I am trying to set…
DottorBooom
  • 41
  • 6
1 2 3
…
16 17