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Questions tagged [imap]

IMAP stands for Internet Message Access Protocol and is the other e-mail protocol along with POP.

E-mail clients using IMAP often leave messages on the server until the user deletes them. This allows multiple clients to manage the same mailbox - useful for support help desks for example.

IMAP 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)
  • Post Office Protocol (POP3)
  • File Transfer Protocol (FTP)

IMAP on Wikipedia

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How do you measure IMAP performance?

We have a mail server built on top of a Gluster distributed filesystem. While this has proven to be fairly easy to set up and quite stable, the performance of our webmail has been quite slow. So now I get to tune the performance of the underlying…
Ernie
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IMAP server can't read (open) mails using fetchmail, procmail & dovecot

I'm trying to setup a mail server ! Everything seems to be ok (after some loooong days) but when I tried to read mail with IMAP server : Apr 18 17:38:48 sd-84941 dovecot: imap(dlp): Error: open(/data/maildir/dlp/cur/1460993401.13028_0.sd-84941:2,)…
partout
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Outlook imap proxy

How can I connect to IMAP (for example imap.gmail.com) in Outlook from behind a HTTP proxy (no authentication needed) ?
Naseer
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pop3 mail proxy on linux server

I have an ISP pop3 account and I need to retrieve mails on my server (ubuntu server) to feed an IMAP webmail (roundcube) installed on my server too. So, I need : my_ISP_POP3server -> POP3proxy_onMyServer -> IMAPserver_onMyServer ->…
partout
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Thunderbird STARTTLS fails connecting to Cyrus-IMAP 2.2.13

Today all of a sudden my Icedove mail clients (38.7.0) ceased working using STARTTLS after I renewed the server certificate. Plain text IMAP works fine. The server logs STARTTLS negotiation failed for each TLS connection attempt. Analyzing the…
Lars Hanke
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Change Dovecot mail directory

I've set up a mail server with Dovecot over SSL. It is receiving emails and placing them in the directory: /home/*user*/Maildir/new I can view them in Vim. However, when I connect to the email via IMAP or Telnet, it does not retrieve anything. Is…
Kohjah Breese
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Ubuntu / CentOS - PHP5 imap ssl

I was wondering now, I have developed a Helpdesk System, than uses the PHP imap library to connect to configured mailbox's and "pull" the mails through and create tickets based on the content. But alas I've run into an issue, some of the servers…
GardenRouteGold
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Dovecot can't see user home dir

I'm testing my Dovecot configuration with mutt but without success. I have user user@example.com, I created home directory for him with maildirmake.dovecot command. But Dovecot cant cd to home directory even if I set 0777 permissions on that home…
QkiZ
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TLS1.2 not possible with iOS mail?

I have a dovecot server running that enforces TLS1.2 ssl_protocols = !SSLv2 !SSLv3 !TLSv1 !TLSv1.1 TLSv1.2 This used to work fine until someone tried to connect with an iPhone which complains that the server is not responding and I see according…
Maximilian Kaul
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Correct Namespace config for Sent/Drafts/Trash with dovecot

Dovecot seems to configure namespaces by default (conf.d/10-mail.conf and conf.d/15-mailboxes.conf) this way: # 10-mail.conf mail_location = mbox:~/mail:INBOX=/var/mail/%u namespace inbox { inbox = yes } # 15-mailboxes.conf namespace inbox { …
allo
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Using POP3 and IMAP for same account

When using a mailserver I know that IMAP leaves all the mail in the server while pop3 downloads it and deletes it (sometimes after a few days, depending on the mail client configuration options). My question is, what happens when using both…
Miguel01
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ActiveSync folder sync issues following import from IMAP

Currently we're running a Microsoft Exchange 2007 server on Windows Server 2008, with which we don't really have any particular issues with ActiveSync normally. In this case we've onboarded a new client who were using Gmail. We downloaded their…
Kovahr
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Imap local cache server

I'am not sure if it's the good place to ask the question. I would like to know if it's possible to have a local Imap cache server. The main IMAP server is by the provider. To improve performance I want to install an Imap on the LAN. When a user…
Florent L
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Dovecot (+ MySQL + postfix) - Client cant access

My goal is to get a mailserver that is capable of sending and receiving emails from several different domains. Therefore I want to use virtual users. I followed this manual step by step:…
user1255102
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dovecot namespace: empty prefix vs. list=yes

I just upgraded dovecot from 2.1.7 to 2.2.13, and my previously working configuration broke. I have one user with an empty prefix in his default namespace: Error: XXXX: Initialization failed: namespace configuration error: list=yes requires…
Joachim Breitner
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