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15

There is one really good reason to disallow this: Even if you configure gmail to use the company address as the FROM-header, gmail will still add a Sender: <google-alias@gmail.com> To every mail that is sent out. Now, this might seem like a small issue, was it not for Outlook that displays a Mail with these headers: From: ...


14

Once DKIM was setup (for help, see this guide) and verified successfully on my domain I still had to enable it in the AWS console at SES -> Domains -> DKIM Once that was done mails to Gmail no longer show up with the via bounces address. You can see it still shows as mailed by: amazonses.com when you view details of the sender but that's OK ...


12

This is called a "catch all" Mapping is done using /etc/postfix/virtual file. vi /etc/postfix/virtual Append code as follows, replacing domain and emailusername with actual values: @yourdomain.com emailusername Save and close the file. Run following command: postmap /etc/postfix/virtual Also make sure you have following line in /etc/postfix/main.cf ...


12

While I haven't tried to relay through a provider using the submission port (587) it should be possible. To enable Postfix to relay you'll need to setup a file with the authenticated credentials to use and make some modifications to your /etc/postfix/main.cf config file. The first is the authentication credentials. For this I simply use ...


11

One feature you may find your missing is Outlook. Yes you can use Outlook with Gmail, but not to the same level. You can't use Outlook to open other users calendars or mailboxes, accept meeting invites or get the same offline functionality. To get the full functionality of Gmail, you have to be using the web interface, which some user won't like. You ...


11

Google has a corporate solution called Google Apps. Your company could consider using that. The paid version of Google Apps has service level guarantees, which could be better than what your internal IT could provide. As for advantages, Google has better spam filtering than most other email providers, because they have so much mail data they process ...


11

The delay appears to be within google's network. However, this is technically not a problem. SMTP delivery is not and should never be viewed as an instant method of communication. It's a store and forward with multiple stops along the way which means multiple queues and multiple locations where delays might occur. SMTP is designed this way and delays can ...


10

Your message is being rejected as spam because it precisely matches the profile of a very common malware distribution scheme: messages claiming to be order or shipping confirmations, with PDF attachments. My suggestions: Clean up the grammar. "This is purchase order document for purchase order #1001"? Broken English sounds incredibly spammy, and although ...


10

You probably want something like this. (see link) IN MX 1 ASPMX.L.GOOGLE.COM. IN MX 5 ALT1.ASPMX.L.GOOGLE.COM. IN MX 5 ALT2.ASPMX.L.GOOGLE.COM. IN MX 10 ASPMX2.GOOGLEMAIL.COM. IN MX 10 ASPMX3.GOOGLEMAIL.COM. IN MX 10 ASPMX4.GOOGLEMAIL.COM. IN MX 10 ASPMX5.GOOGLEMAIL.COM. Make sure you add that trailing period.


10

Simple answer: don't have a catch-all on your domain. In fact, don't accept mail on your server for accounts that don't exist, full stop. Just reject it outright, during the initial SMTP transaction. This is especially important when you have a front-end SMTP "proxy" server that does things like anti-virus, anti-spam etc, before passing clean(er) emails to ...


9

I did the same thing recently for two of my clients. Commander Keen is correct you are looking for Google Applications. There is a free and paid plan. The paid plan has more uptime guarantees and vastly more space. You route mail from your server to Google by modifying your Zone Record/DNS. Its not that hard to do. And they provide some decent ...


8

I think from a security perspective, you should not allow this. All the data in the company mail system belongs to the company, I think you'll be putting the company at risk this way by opening this up - as usual - security comes at the cost of convenience, there's no easy way around it. Of course you can't go too far with restricting people's freedom with ...


8

I considered making this switch at a private school I volunteer with. We decided to stick with Exchange for the following reasons: 1) End user re-training, they like Outlook alot. 2) Being able to find people in the directory of Outlook, I tried to find a way to re-produce this with Google Apps but I could not find one. Our users don't want to have to ...


8

Mailchimp have an excellent article on How To Avoid Spam Filters Update: Ok, seeing as I got slammed for just giving this link (to be fair its contents probably wouldn't solve your problem here), I've added more specific to what you're sending. I suspect its the text you're using. 'Please confirm your email address by clicking the link' - I think you ...


8

You want to prevent this sort of thing in the future? Use a real MTA instead of Google Apps. As you've discovered, it is certainly possible to relay emails through a GApps account, but it's far from ideal, and frankly, it's not what that service was built to do. They give you zero visibility into logs of any sort, which you'd need in order to troubleshoot ...


8

Disclaimer: This answer was speculation one until GMail person confirmed it. Looks like it's GMail mishandle your fetched email here. Some peoples also report similar case with yours in here, here or here The problem is: GMail also deploying SPF measure when scanning email after fetching it via POP3. Normally SPF-checking take place in SMTP transaction ...


7

Your application can send mail directly from its application server, provided you take some steps to ensure that your outbound mail doesn't get flagged as spam. This includes setting reverse PTR (DNS) records for the sending server's IP address. Possibly some manipulation of headers and maybe an SPF record... Another option is to relay your application's ...


7

I would like to know some suggestions for open source solutions, I dont want something really complex ("a complete enterprise groupware solution", just the name "enterprise" gives me itches), I want a simple web based e-mail account. If a web interface is not possible, at least a *nix solution very light which supports pop3/imap. I use: Postfix for ...


7

Sorry, but your 90% reliability of GApps is way off. If their reliability was that bad, there's no way they would have the market share they currently do. If you insist that their uptime is that bad, I'd start looking into your own infrastructure to see if something is wrong. I've been using GApps Standard (the free version) for several personal and ...


7

In the manage domain settings | service settings | email change the first option "web address" to point to the URL you want (i.e. mail.mydomain.com) then create a CNAME record that points mail.mydomain.com to ghs.google.com.


7

It looks like gmail won't show the IP if the message was sent from the web interface, but messages sent from an email program, using gmail's SMTP server will have the sending IP in the mail headers.


7

You're mixing the terms a bit. Google App Engine is for developing your own services. You want to sign up for Google Applications: http://www.google.com/apps/intl/en/business/index.html When doing that, you'll get good instructions on how to relay your email through google. Both in- and outgoing.


7

I am using gmail as my email provider. Ok, so I'm working under the assumption that you have an address, let's call it myaddress@gmail.com that you're sending from, and you're receiving email at google using that address. I want to send email from my dedicated server and I don't like the 500 message per day cap. Ok, you want to switch to a server ...


7

I host some of my personal email there (not like "I have a gmail account" but actual domain email hosted there). On the one hand, they're pretty reliable, and they're not likely to get taken down by any shmuck with a grudge against your company. You get a lot for free, and if you want more, it's pretty cheap. They do do decent spam filtering, and probably ...


6

We use it here, and I really like it. I just don't have to think about e-mail anymore — I can't think of any higher praise than that. That said, the switch was made before I started here, and so I have none of the political pressure that comes from such a move and didn't have to deal with any of the conversion issues. Here is what I found: You ...


6

What I did to disable local delivery. I'll be using the example.com domain. Requirements: example.com A entry pointing to IP address assigned to one of the eth interfaces. /etc/hosts defining example.com assigned to the very same IP address as above example.com MX records pointing to Google servers (ASPMX.L.GOOGLE.COM, etc) default sendmail installation ...


6

From Google: Configuring Your MX Records: Other domain hosts http://www.google.com/support/a/bin/answer.py?answer=33915


6

I have switched our company to Google Apps Enterprise, so I thought I would give some feedback based on an actual switch. So far, the switchover has been pretty smooth, and practically all user's old email has been able to be uploaded to the Google servers. Although it is a valid concern that Google could do something that would lose our data, it is much ...


6

In My Humble Opinion.. It shouldn't. Managing a mail-server, properly, is a massive ball-ache. We have 40 odd users, and use GAFYD (Google Apps For Your Domain). It works perfectly. We don't need Exchange or any of that Microsoft Bloatware. It's nice not to have to worry about spam, or anything like greylisting. I'm very happy GAFYD. I can also highly ...


6

If gmail doesn't like your messages your issue is with Google. You need to talk to them. Refusing to provide us troubleshooting details just ensures that we can't help you. If you are a bulk sender, this link is for you. If you're not a bulk sender you want this link (If that second link doesn't work it's the part of the first link that says "Not a bulk ...



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