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Questions tagged [email]

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

921 questions with no upvoted or accepted answers
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8
votes
3answers
1k views

Exchange 2010 send from multiple domains

We have a Windows 2008 Enterprise R2 SP1 server with multiple accepted domains configured on our Exchange 2010 console. Configuration of exchange 2010: In exchange console, under organization ...
5
votes
1answer
1k views

Disable Outlook Web Access Junk filtering in Exchange 2013

By default, Outlook Web Access (OWA) in Exchange 2013 seems to move suspected junk mail to the Junk Email folder. This is undesirable behavior in most of my environments because we have Barracuda Spam ...
5
votes
1answer
1k views

OSX 10.6 integration into NIS/netgroup/automount infrastructure

I have an existing infrastructure where accounts are maintained under NIS (yp) with no local unix accounts. Also, all the standard maps including hosts, mail aliases, netgroups, etc...are maintained ...
4
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0answers
210 views

Anubis as GPG proxy

I'm trying to setup GNU Anubis to act as a sort of proxy to sign/encrypt emails coming from a service. The service is currently configured to send email using our SMTP server. The idea would be to ...
3
votes
0answers
535 views

Postfix forwarding - SPF issues - Sender rewrite

When using Postfix virtual alias maps to forward email to another domain, is it possible to have Postfix re-write the sender address exclusively for forwards to avoid SPF rejection at the final ...
3
votes
0answers
185 views

Multiple relays with OpenSMTPd

We use mailhog in development / testing and hook it up to postfix. It so that if you mail to an email address ending in .external, it will be relayed to a real server. And, if doesn't we relay it to ...
3
votes
1answer
366 views

Hosting multiple websites (Apache Virtual Hosts), Postfix settings for sending mail FROM those domains?

I am not sure that this was the right solution in the first place but I have Postfix up and running on my Ubuntu VPS with G-Suite using relayhost = [smtp.gmail.com]:587 Mail is delivering fine, ...
3
votes
2answers
36 views

Is it possible that create an Office365 account that sends emails on other people's behalf?

I have an internal app that needs to send emails on other people's behalf. For instance, I might need to send an email from a@company.com, b@company.com and c@company.com to target@company.com. All ...
3
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0answers
3k views

Mailgun emails are rejected everywhere but on Gmail

My problem and Mailgun logs I've "setup and verified" (see context) my sending domain with Mailgun, so I could use it to deliver my contact/order forms via Mailgun API: https://github.com/mailgun/...
3
votes
0answers
2k views

Outlook.com rejects: 550 SC-001 (BAY004-MC5F13)

I am operating a cluster of 3 dedicated machines for a webapp, each of those uses sendmail as MTA. Hostnames are node1.domain.com node2.domain.com node3.domain.com Unfortunatelly outlook.com rejects ...
3
votes
1answer
866 views

Certain SC Orchestrator Send E-Mail activities are sending 2 emails

Also posted this on TechNet but barking up this tree too just in case. Not really sure what's going on here, but I have certain System Center Orchestrator (2012 R2) Runbooks that are sending multiple ...
3
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0answers
1k views

nullmailer swaps sender and recipient

I want to send emails from my server through external mail server. So I installed nullmailer as one of simpliest MTA in Debian 7 x32. My /etc/nullmailer/remotes: smtp.example.com smtp --user=sender@...
3
votes
0answers
279 views

Spamassassin internal DNS resolution?

Short Version: Is it possible to configure spamassassin to perform its own recursive DNS lookups instead of using the server specified by the OS? Long Version: I've got a collection of dedicated ...
3
votes
1answer
389 views

Outlook 2007 E-Mails come in blank or with <=“” style=“”> in the body, nothing else

Basically users who have just been upgraded to Outlook 2007, are not receiving SOME emails (from outside our domain, ie hotmail, yahoo). It seems that maybe these emails are HTML based, and not sent ...
3
votes
1answer
708 views

How to send report created by Munin to email once per week

I have a page with Munin reports and I want to send the email with graphs once per week on specific email. Any thoughts on how to achieve this? Thanks!
3
votes
2answers
1k views

sendmail: website and email on same domain/server

I am using sendmail for my website, my email address is also using the same server name. So, www.zedsaid.com and nic@zedsaid.com. Sendmail seems to not want to actual deliver the mail to my inbox, ...
3
votes
3answers
267 views

Mail relays or SMTP services for use in code

I'm looking to start using an SMTP or mail relay service. I've found quite a few out there, but I'm not sure if there are advantages to one vs another. The only requirements I have are: can send "...
3
votes
1answer
3k views

Make Postfix search LDAP group members by UID instead of DN?

I'm creating an e-mail server with postfix (v2.7.1 on Debian 6.0) where users and groups are stored in an LDAP server. Users accounts works fine but I want to create e-mail aliases from group (any e-...
2
votes
0answers
36 views

Use windows proxy only for one, single address

My company only allows ssl email ports through their proxy address. I don't need for any other address either in email or when web browsing. However, this proxy address does not work when I'm at ...
2
votes
0answers
31 views

Sendmail and non ASCII characters in adresses

Does anybody know of plans for support of EAI and SMTPUTF8 in sendmail? I could find very little about it. On the same note, does anybody know if sendmail's development is alive/dead/comatose? The ...
2
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0answers
71 views

Sendmail - convert 500 fatal errors to 400 temporary errors - possible?

I run a couple of email relay hosts at work. A number of customers use ProofPoint as email washers, so their MX record in DNS is something like mxa-002d7b01.gslb.pphosted.com which washes the mail ...
2
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0answers
44 views

WAN failover for local mail server

I have a question about possible failover solution for internet connection to local mail server in one small office where are problems with ISP. There is Kerio Control server with public static IP 1.1....
2
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0answers
88 views

When sending an email to Gmail, I get a delivery error email back to me

I have a VPS and when I send an email, I get a delivery error email with one of the following (the email is not in the spam, it is not being sent at all): all hosts for 'gmail.com' have been ...
2
votes
0answers
257 views

configure supermicro x10 ipmi email alert?

does anyone know how to configure a Supermicro X10dri to send out email alerts through its IPMI interface? I am trying to use a gmail account and have already enabled less secure apps.
2
votes
1answer
428 views

IMAP connections from Microsoft IP addresses when using Outlook

I run a Linux based mail server and use Dovecot to provide IMAP over TLS access. This server has been up and running for a bit more than 8 years now and it serves my email address along with those of ...
2
votes
1answer
44 views

Mail blocked from Windows Server 2016, but not since 2008

Good Morning: I'm running exactly the same script from two different virtual machines: The first in Windows Server 2008 R2 The second in Windows Server 2016 Features The SMTP is an external ...
2
votes
0answers
43 views

How to restrict the addresses in MAIL FROM?

Good Nighttime, I've a postfix server combined with a mysql-database for address management. There is a table mapping the users and their mail addresses. e.g. |user|mail@domain.tld| |user|mail2@...
2
votes
1answer
396 views

Outlook 365 1808 - Autodiscover with Postfix/Dovecot

The situation is : I have a mail server with Postfix, Dovecot and Apache2 for the autodiscover URL. Mail server is set up for TLS only (465, 993 and 995) the domain is controlled by myself (SRV ...
2
votes
1answer
124 views

change conference room booking auto reply language

How to change the language that is in this auto reply (yellow color text)? Currently it is in RU and i would like it to be it in EN-US. I haven't found any methods to do this via Exchange management ...
2
votes
1answer
83 views

Reject Exim authentication attempts based on username

Is it possible to set up Exim so that, based on the username passed along to it, it can reject an authentication attempt before it will try to do a password lookup for that username? I've done similar ...
2
votes
1answer
157 views

Postfix gives error in maillog: maps_find: smtp_generic_maps: log: not found

I have changed the default FROM address of Postfix, from root@example.com to log@example.com I can send the e-mails fine, but when I check the maillog file I then see some "not found" errors. /etc/...
2
votes
1answer
996 views

Postfix matches SASL username and not the FROM mail field with smtpd_sender_login_maps

I have already read hundreds of posts all over the internet and I couldn't find anything that solves my problem. So I decided to write this post and hope somebody can help me. First I want to ...
2
votes
1answer
552 views

Postfix: always_bcc all but one domains

There are two mail domains on two Postfix servers, let's say a.com on server1.com and b.com on server2.com. Users and aliases are stored in an Active Directory, which we access by using the ldap ...
2
votes
0answers
2k views

IMAP/POP3 with Dovecot & Postfix: Authentication Failed

Says it all in the title. To give you some background, I'm a programmer. I'm not into installing mail servers as a hobby, and I'm having to make one because the project I'm creating will need to use a ...
2
votes
1answer
654 views

Postfix sometimes “connection refused” when SMTP'ing

I'm facing a weird problem with Postfix right now. My setup is Postfix 2.9.6 and Dovecot 2.1.7 on Debian 7.11 and there's a second server configured exactly the same that does not show this problem. ...
2
votes
0answers
58 views

vCenter email notification has a semicolon/SMTP does not recognize it as a valid email address

Messages from vCenter has this header info: Received: (from root@localhost) by (8.14.3/8.14.3/Submit) id u92F2su5032029; Sun, 2 Oct 2016 15:02:54 GMT Date: Sun, 2 Oct 2016 15:02:54 GMT ...
2
votes
2answers
6k views

Email/Exchange/Office 365 - Postmaster Spam

I use Office 365 for email with about 30 people using 6 domains. I occasionally receive messages from the "Postmaster" saying that an email was rejected which was never sent. For instance: I ...
2
votes
1answer
3k views

External recipients in distribution group not receiving emails

In Office365, we have a distribution group, group@company.com, set up with the following members: internaluser1@company.com internaluser2@company.com externaluser@external.com (@gmail.com, for ...
2
votes
0answers
2k views

Difference between mail and sendmail in regards of Laravel 5

I wish to have a brainstorm with you all about Laravel 5 and it's mail function. The point is: I have multiple servers with CentOS 7 installed and using them as webservers for laravel 5 based sites. A ...
2
votes
2answers
1k views

Fail2ban not respecting email settings

In Fail2ban I have set up my email settings as: # Destination email address used solely for the interpolations in # jail.{conf,local} configuration files. destemail = me@hotmail.com # # Name of the ...
2
votes
1answer
347 views

sendmail cant send mail - Centos6/7

I have a newly minted CentOS 6.7 box to set up sendmail on. It seems sending email but not really, no idea whats the issue could be. What I did: yum install sendmail sendmail-cf sendmail-doc ...
2
votes
0answers
60 views

Retention for Attachments - - - Microsoft Exchange 2010

Currently I am working with getting rid of voicemail to email files to save space in our archiving solution. Currently I have a search-mailbox script written to take care of deleting the voicemail e-...
2
votes
0answers
117 views

Courier mail server - forward to dynamic address?

I'm running a Debian server with Courier as MTA and would like to create a mail forwarding rule that does the following: extract the domain from the address of the sender example: noreply@example....
2
votes
0answers
701 views

Autoconfig and Autodiscover records added, Mail Apps still not discovering configuration

I have setup autodiscover and autoconfig configuration over my linux server Auto Discover Auto Config by following this Tutorial but my mailing apps are still not getting the configuration ...
2
votes
1answer
341 views

How to Route google apps gmail based on subject line?

I set up a bunch of routes in my new google apps system (migrating from doing inbound email with mailgun forwarding). In one case we need to forward all email with a particular subject to another ...
2
votes
1answer
103 views

Catch incoming email and then deliver to original recipient on sendmail

in the company I work for there are a user that is making bad use of the email, but to have evidence of what he is doing we need to intercept all the incoming email to him and all outgoing email from ...
2
votes
1answer
1k views

Hotmail/Outlook.com DKIM failure when signing with different domain - header.d ignored

We (sender.org) provide a mail server for a client (example.org) and sign outgoing messages with our private DKIM key (we cannot change the signing domain to the client's domain). Return-Path: ...
2
votes
0answers
2k views

When does Postfix not perform lookups in virtual_alias_maps?

I'm having a real pickle of a problem: I have a Postfix 2.6.6 / CentOS 6 server that's set up to forward mail from specific aliases to specific destinations. This is done through a mysql ...
2
votes
0answers
386 views

How can I get openSSL to run on my web server with a PHP5-FPM chroot?

On my web server, I changed the chroot to only have access to the root of my website's home directory as opposed to the rest of the file system, for security purposes. However, I've noticed that since ...
2
votes
2answers
494 views

how to Dedupe email messages in exim mail server (Linux)

If a User is listed in multiple aliases or multiple mailing list or groups a message is sent to more than one of the aliases, mailing list or group the end User will receive multiple copies. How to ...