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

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Disable user_deny.db in Cyrus/imapd

We have a cyrus 2.4.12 on Debian, we use packages, rather than building each software ourselves. I am getting the this "log" constantly, a lot of, various users, and 8-10 times per user request: ...
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1answer
46 views

Setting up mail accounts without real Linux users

I've setup Postfix and Dovecot on my Ubuntu Server. My aim is to create 27 mail accounts that can receive and send mail to everywhere. I've got emails to not show up as spam in Gmail, Yahoo and ...
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0answers
11 views

GMAIL SPAM - What is wrong? [duplicate]

I have a problem with the fact that a message from me to get spam. Here, information on e-mail: Delivered-To: nicehost.pl@gmail.com Received: by 10.157.40.121 with SMTP id h54csp2233302otd; ...
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1answer
1k views

EXIM - 550 Cannot receive from specified address - Sendgrid

We're having some intermediate issues with exim where some emails go through and then others get the 550 Cannot receive from specified address Error. This is the guide we used to setup EXIM: https://...
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1answer
45 views

Migrate email account from Dovecot to Dovecot servers

1) I need to migrate some mbox imap email accounts from a shared webhosting provider to another one. 2) Both servers seem to use Devecot, as a telnet command on port 143 shows an identical response: ...
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1answer
15 views

What special kind of IMAP mailbox is “foo@user.alice.”?

Preparing an IMAP server migration and checking for connected components of users sharing mailboxes, we stumbled over a some unusual ACL patterns observed when running listaclmailbox * in cyradm (...
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0answers
21 views

Using a local IMAP server for mail archive

In migrating my data from OS X to Windows 10, I was about to transfer my email archive (you know, the local folder with years and years of messages) when I had an idea: instead of going through the ...
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1answer
400 views

Autodiscover for IMAP over SSL

Is it possible to setup Autodiscover for your domain.com without the use of an Exchange Server in the back-end? I already have an IMAP/POP3/SMTP hMailServer running on Windows with IIS Web Server. ...
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1answer
19 views

What's is the best way to migrate dovecot imap accounts to office365

i need migrate some accounts from dovecot imap service (how cpanel setup) to office365. This accounts should be of diferent licences businnes and kiosk. Is this possible? Any suggestes? Somebody ...
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1answer
1k views

Squid3 CONNECT imap.gmail.com:993 TCP_DENIED:NONE

I have the following configuration under squid.conf. However, when my Blackberry email client attempts to fetch new emails, etc. Squid access log show the following error: imap.gmail.com "CONNECT ...
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7answers
7k views

Fast way of copying IMAP to IMAP on CentOS

I'm trying to copy of IMAP emails from one server to my new server but after Googling for hours and trying several tools, nothing is working. Is there a tool that actually works? I am copying ...
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1answer
2k views

Hmailserver and Outlook 2013 can send but not receive any emails in POP3 or IMAP

I'm having problems receiving any email from outlook. I can send email through smtp using comcast (my isp) without a problem, but I can't receive any email using either personal pop3 configured in ...
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1answer
32 views

Add new email user in Dovecot

I installed Dovecot 2.2.10 & Roundcube in Amazon Linux (apparently it's a CentOS variant). If I want to add a new mailbox (e.g. info@mydomain.com) to IMAP, how do I add this mailbox? I read from ...
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2answers
2k views

Exchange IMAP4 connector - Error Event ID 2006

A couple of users in my organisation use IMAP4 to connect to Exchange 2007 (Update rollup 9 applied) because they prefer Thunderbird / Postbox clients. One of the users is generating errors in the ...
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1answer
283 views

Dovecot STARTTLS fails using fetchmail

I currently try to get my own mail server up and running. So far everything seems fine as I am able to connect to this mailserver using thunderbird. The only thing I have to do is accepting my own (...
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1answer
43 views

Server 2012 indexing

we are encountering an issue where an Index file keeps growing indefinite until the special partition for it becomes full and causes it to be come corrupted, which the indexer then deletes and ...
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0answers
9 views

courier-authlib not connecting on Gentoo

I may have 2 issues, or miss reading one. logs: May 15 11:17:17 r2d2 authdaemond[26904]: Installation complete: authpipe May 15 11:17:30 r2d2 postfix/smtpd[26986]: sql auxprop plugin using mysql ...
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0answers
26 views

How can I add SHA512-CRYPT support to SOGo 2.3.10?

I am trying to connect SOGo to an existing Dovecot/Postfix setup (trusty tahr) with a MySQL backend. I established the connection and so far everything seems to work except the login part since the ...
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2answers
435 views

courier-imap w mysql : share a folder between 2 virtual users on debian

I have a working courier-imap server on my Debian Etch private server ; users are virtual, authentificatin goes through mysql. It's been working good for years. I would like to share an imap folder ...
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1answer
31 views

The greeting from an IMAP server — format?

I'm trying to understand the specification of IMAP found at INTERNET MESSAGE ACCESS PROTOCOL - VERSION 4rev1 (RFC3501) Does the greeting from a server always have the following format? * OK ...
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1answer
78 views

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 ...
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1answer
114 views

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(/...
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1answer
29 views

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 ...
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0answers
28 views

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 -> ...
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3answers
3k views

Backing up the open-source edition of Zimbra mail

Background: We run the open-source edition of Zimbra mail (5, not 6 yet) and while it's not something that we want to encourage (prevention is better than a cure), we currently have no way of backing ...
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1answer
66 views

SELinux preventing Asterisk from connecting to IMAP server for voicemail

I am running Asterisk on Fedora 23 and am using the voicemail IMAP module to store voicemails to Gmail. When SELinux is in enforcing mode it prevents Asterisk from connecting to Gmail. Here is the ...
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1answer
497 views

How \Deleted flag can be unset for all mails in cyrus-imapd mailbox?

I have a 5GB mailbox which I moved using imapsync. But somehow I messed up with --delete/--delete2 option and end up with almost all the messages having \Deleted flag set. I do not have delayed ...
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2answers
70 views

Port decisions for email setup in 2016 (Ubuntu)

I have a new Ubuntu 14.04 LAMP server with the UFW firewall setup on DigitalOcean. My goal is to add email for use on my phone(iPhone) and laptop(via Roundcube). There is a lot of old information ...
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30 views

IMAP woes when moving to new Exchange

We've recently moved to a semi-outsourced Exchange farm, replacing our internal one. An application I've been asked to help troubleshoot uses IMAP to download some emails from the Exchange servers in ...
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1answer
25 views

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 ...
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1answer
72 views

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 ...
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1answer
9 views

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 ...
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1answer
34 views

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 ...
2
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1answer
41 views

Is there anyway to use rsa certificate authentication with imapsync

We have an off-site warm standby backup host that I wish to periodically synchronise our imap server with using imapsync. I would like to know if it is possible to use RSA certificate authentication ...
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1answer
187 views

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 ...
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1answer
406 views

imap issue proxynotauthenticated

I am having serious issue during coexistence between exchange 2010 and 2013, authentication failed when attempting to connect through IMAP, I will write the environment and the logs in points so that ...
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1answer
104 views

Postfix/Dovecot Email Server (on Raspberry Pi) - Unable to configure POP3S connection with Gmail

I've been trying to configure my Raspberry Pi (Raspbian Jessie Lite) as a postfix/dovecot email server for my domain dominicgkerr.co.uk. Using a combination of the fantastic walkthroughs written by ...
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1answer
1k views

Using UNIX mail/mailx with a modern mail server (IMAP instead of mbox files)

I have a user who's an old time unix guy, he's been managing his email using the same tools (unix mail/Mail/mailx) since he started work at Bell labs in 1980. So he's got 20+ years of mail and ...
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2answers
851 views

Can't login to dovecot using gmail as an email client

I've used this installation configure-email-server-using-postfix-dovecot When I try to use gmail as the email client (connecting to my server through port 993) I get this error Unable to establish ...
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4answers
3k views

Fast imap server for larger folders

I'm looking for an imap server that is fast with larger folders. Say 20'000-100'000 emails per folder. Currently I'm using dovecot, and opening a folder can take 10 seconds, and the HD light on the ...
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0answers
5 views

I added a mail account to Outlook using imap and now want to sync the agenda to iphone, is this possible?

Currently I have the mail account added to both Outlook and iphone using the same imap/smtp settings. When I add and verify the account on iPhone in "Settings -> Mail, contacts, calendars" the only ...
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6answers
11k views

Migrate IMAP account between providers - client access only

I have an IMAP E-Mail account with my old provider. I have a new, empty IMAP account with the new provider. Is there a tool or Thunderbird to migrate the E-Mail data from one account to another? I'm ...
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0answers
16 views

Email migration from a directly owned and operated server to a hosted service

My company sells subscriptions to some offline services, which include a complimentary email 1 Gb email account with POP/IMAP access. Roughly 2000 users use this service. Right now, we operate this ...
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1answer
83 views

Safest Means of Deleting Old Messages in Dovecot

So I'm trying to setup automated deletion of messages in Dovecot using a cronjob to run a daily doveadm expunge and weekly doveadm purge to clear out old messages with some given criteria (mostly ...
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1answer
62 views

Can't login to round cube new domain

I have multiple domains working on my mail server, and all are working normally, I configured new mail domain "example.ae" normally on mysql mail db, created new user, inbox was created on server, ...
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2answers
3k views

Configure Dovecot to only let localhost connect via imap

How do I configure the Dovecot message delivery agent to only allow imap connections from localhost?
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0answers
174 views

Postfix error: no SASL authentication mechanisms

I have searched many hours but can not fix the problem. Does anyone can show me the way to fix it? This is my postconf -n postconf: warning: /etc/postfix/master.cf: undefined parameter: ...
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1answer
241 views

reverse proxy for multiple SMTP / IMAP servers

Instead of giving our clients server name's like beta.example.com as IMAP / SMTP servers, we'd like to use smtp.example.com. We have a database of all domains / e-mail servers and corresponding mail ...
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2answers
4k views

Turning on UFW stops my e-mail client functioning (both imap and smtp) even though they are allowed?

I am using ubuntu 10.04 on a VPS. Without enabling UFW everythign works fine - imap using port 143. And sends emails using smtp port 587. However, when I turn on UFW a lot of problems are ...