Questions tagged [email]

The server configuration of email, including POP3, SMTP, IMAP, and popular server software packages that control email.

The server configuration of email, including POP3, SMTP, IMAP, and popular server software packages that control email.

6589 questions
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Temporary failure in name resolution : Host name lookup failure

I've got a script in PHP that's been running fine for months. It recently stopped working. This script connects to gmail to send out an email to my customers. Recently, I started getting this error when I run the script: The SMTP connection failed…
GeoffreyF67
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Does Exchange support disposable e-mail addresses?

Sometimes it is useful to have e-mail address like foo-randomnumber@example.org, where randomnumber identifies the conversation between a robot such as a mailing list server and a user. Is this possible with Microsoft Exchange?
joeforker
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What happens when a mail server goes down

I will deploy a web server, but I don't have much experience. I would like to know what happens with mail that is send when the server is offline (restarting, maintenance, etc.). When an internal user wants to send and receive mail, it's logic that…
user28362
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MAILTO is not working for CRON. How can I fix this?

I have setup cronjob for the root user. However when the cron fail I should receive an email from the cronjob because I have set MAILTO like this in /etc/crontab : MAILTO=my@email.com I have installed mailx using yum install mailx But when I look…
benjisail
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Easiest way to send an Email from the command line, using windows 2003 R2

I have a Windows 2003 R2 server and I want to send an email from the command line. This server does not have the SMTP service configured. Is there a one liner that will let me send an email? My specific use case at the moment is to send an email…
Peter
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How do I send mail from linux command line so it appears as HTML to recipient?

I've tried emailing a normal web page using something like: mail -s "Test Email" blah@blah.com < webpage.htm However, the recipient sees the raw HTML tags in the email and none of my careful formatting. Am using RedHat Linux.
Umber Ferrule
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Trying to setup mail server, can't get ports (25, 587) to work

I've searched everywhere and I'm really struggling with this one. I think I've tried just about everything. Background info VPS with CentOS 6.7 Postfix 2.6.6 dovecot, amavis, mysql, fail2ban I've verified with my VPS provider that they do not block…
reachergilt
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Why does DMARC operate on the From-address, and not the envelope sender (Return-Path)?

Several emails sent from my webserver to a Gmail address, where the From: address is websitevisitor@gmail.com, have been marked as spam by Gmail. The From: field is populated from form data, and corresponds to the visitor's actual email address,…
EelkeSpaak
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SPF + DKIM + DMARC with Gmail account and external mail server

I,m using gmail with own domain (Google Apps) for my project. Now I want to add external mail server for sending notifications for users. Gmail doesn't give private keys for DKIM and if keys will be generated on external mail server, in case strict…
cptBuggy
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Postfix emails detected as spam with gmail

I know that there are a few posts about this and I have been reading them for a while now but still, I can't resolve my issue. I’m running ISPconfig with postfix and I can’t figure out why my outgoing emails are marked as spam in gmail and…
DamDIT
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Helo command rejected: Host not found - Setup postfix to accept sending mails from my home server through my public server

I would like to receive system emails from my home server. So I'm trying to configure postfix to do that through my public server. My public server has a fixed IP, while my home server is in a private network with a messed up hostname due to my…
The Quantum Physicist
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Postfix: selecting relay host based on From: mail header rather than envelope sender

I've successfully set Postfix to relay emails via Mandrill using SASL and sender_dependent_relayhost_maps with a MySQL table so that different senders connect to Mandrill using their own Mandrill username and API key. So far so good, but I've got…
Adrian Savage
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Parse undelivered mail headers (bounced mail)

What is the best way to parse the headers of bounced (undeliverable) email that is sent back to my server and determine whether it is a soft or hard bounce? I only send opt-in emails to my users, but occasionally some email addresses go stale. When…
Richard
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invoke filtering manually in dovecot+sieve

I've configured dovecot with a sieve filtering (also I've configured roundcube, but this does not matter I think). It's working fine, I've set up some filters. But now I've got a huge unfiltered INBOX folder which I don't want to filter…
Arenim
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Why is email being delivered normally despite an SPF "hardfail"?

I'm trying to figure out why forged email is being delivered to major email providers (gmail.com, outlook.com) even though email is marked with an SPF hardfail. The email is also delivered to Microsoft Exchange, which is throwing a PermError for…
Rook
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