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Questions tagged [email-server]

Refers to the hardware or software that make up a server dedicated to sending and receiving emails. Many popular modern email servers bundle other functionality for contacts and calendaring along email delivery.

Refers to the hardware or software that make up a server dedicated to sending and receiving emails. Many popular modern email servers bundle other functionality for contacts and calendaring along email delivery.

A list of mail servers can be found on Wikipedia, though sendmail, Microsoft Exchange Server, Postfix, and Exim are the most popular email servers, which together control over 85% of market share for SMTP service.

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Is Dovecot required for mail server like Exim or Postfix?

I am really confused about this, because I thought Exim and Postfix can authenticate user logins and nothing is required. Reading the page at https://www.digitalocean.com/community/tutorials/how-to-install-and-setup-postfix-on-ubuntu-12-04 It…
user702300
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Postfix TLS Error

I'm working with a Postfix/Dovecot/Roundcube setup, aiming for a virtual user mail system that can send mail through the internet, as documented here. Everything seems to work well; Dovecote shows no problems, I can telnet into all of my ports;…
steelcowboy
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How can I forward mail while saving a copy using postfix and mysql?

I'm migrating email from old Plesk installations to custom built Ubuntu server running iRedMail (postfix/amavisd/dovecot/etc). I'm using postfixadmin to administrate all domains and a mysql backend. I've noticed that if I want to "alias" something…
FilmJ
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Dovecot creates folder, Postfix expects file

I have tried configuring a Postfix/Dovecot combo with virtual users using this guide. My server is running Postfix 2.6.6 and Dovecot 2.0.9 on CentOS 6.5. The problem is that when I connect to the server using Outlook 2013 (it connects just fine on…
Steen Schütt
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Is it ok to use self-signed certificates for smtp transport?

By "by ok to use" I mean: are MTA agents receiving emails from my server going to reject my email if not, are they going to make other kind of bad treatment for my emails (marking as spam, unsafe and so...)? ...or is it just better idea to stick…
Miloš Đakonović
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AMaViS: missing X-Spam-Status header

I set up a mail server with Dovecot, Postfix and AMaViS on Debian Squeeze following the tutorial on workaround.org (ISPmail tutorial for Debian Squeeze). It uses virtual domains and stores the domains, e-mail addresses and accounts in a MySQL…
Jan
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Do I have to have an ssl certificate for my mail server?

Question is really simple. If I want to setup a mail server, do i have to have it or is it just a security issue? What kind of problems can it cause?
previous_developer
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Amazon SES vs EC2 Smtp server

We have an existing smtp environment setup in an EC2 instance which is used to send Transactional emails like password reset. Now we have a requirement to send System emails to a large user base in the range of > 1000 emails per day. First question…
Rishabh
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What exactly is a X-YMailISG header?

Finally ... our emails are being seen by Yahoo! not as junk anymore. Hurray! However I notice that the Yahoo! receiving MTA adds in a X-YMailISG header. It's very large ... 2**10 bits? Now that I've invested too large a chunk of my waking life in…
iainH
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Postfix on linux not sending mail

For some reason my server has stopped sending mail, and I am not sure why. I am running Debian 5.0 with postfix. I remember setting it up using apt-get, and it worked fine. Is there a config file that I need to update? Can I send a test email…
Zed Said
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Any gotchas for using multiple SMTP servers for a single domain?

We want to run the majority of our mail (inbound and outbound) through a third-party service provider. We also want to keep an SMTP server running onsite that will be used with existing automated senders tied to internal projects. A colleague…
user31610
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"unsupported dictionary type: pcre" postfix header_checks

I have the following header_checks in place on Postfix /^Received:/ IGNORE /^X-Originating-IP:/ IGNORE /^X-Mailer:/ IGNORE /Message-Id:\s+<(.*?)@www.mainserver.com>/ REPLACE Message-Id: <$1@www.domain.com> /X-Mailer-LID:/ …
Toodarday
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Dovecot cant connect to imaps 993

I am trying to set up a mail server in digitalocean VPS. The problem is that i cant telnet to 993 although firewall is inactive and dovecot is listening. Please tell me where i do wrong. I followed this postfix, dovecot, mysql, spamassasin…
Fandi Susanto
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Logwatch is not respecting MailFrom

I've gone through today to setup Logwatch on my server and have installed this all successfully. I've followed this guide on Digital Ocean and set the MailFrom parameter to: MailFrom = mailer@mydomain.com I'm using ssmtp to send emails using my…
James
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How to flush postfix queue one mail at a time?

Sometimes, mails stay stuck in my postfix queue, the distant server saying "Too many connections, slow down". I already configured my postfix for specific domains to send only one mail per second, but sometimes it seems insufficient. I know of…
vincent.m
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