Gmail additional addresses and duplicate messages.
November 1, 2011 4:36 PM   Subscribe

Gmail: when I add another sender identity to my gmail account, and send from Gmail to that address, I immediately get a copy in my Gmail inbox. Confused? Let me explain...

I have a Gmail address ( and a work address ( In Gmail I go to "Settings", "Accounts", "Send mail as" and add and get it all setup.

Now, I compose a new message in Gmail from "" and to "". Click send and in addition to a new message in my work inbox I get in Gmail a copy of the message from "me" with these headers:
MIME-Version: 1.0
Received: by with HTTP; Tue, 1 Nov 2011 16:27:36 -0700 (PDT)
Date: Tue, 1 Nov 2011 18:27:36 -0500
Message-ID: <>
Subject: Test for AskMe
From: "Foo Bar" <>
Content-Type: text/plain; charset=ISO-8859-1

Here is my test for AskMe.
My work and Gmail accounts are not in any way connected except I've added this "Send mail as" address. Work is not a Gmail hosted app (it's Exchange in fact), and I've also tried with other non Gmail servers (postfix/cyrus) and it does the same thing. But as you can see, this duplicate message never seems to leave Google.

I think what's happening is that Google's SMTP system is seeing my additional address as something that's locally deliverable and creating a copy (along with sending it to the proper destination). But I don't know how to tell Google not too.

This is all coming about because many people I work with use Gmail exclusively and forward their work email there. They add mailing list addresses as additional ones to their Gmail (so they appear to be sending from the list) and then anytime they send to the list they get not only the copy back from the list but also this duplicate Gmail copy.
posted by sbutler to Computers & Internet (10 answers total) 1 user marked this as a favorite
That doesn't sound right at all. Considering the difference in domain, there is no reason you should be receiving a copy unless you have set some sort of Alias that equivalents your work address to your gmail address.

Your header specially says Delivered-To There is probably some Alias or "forwarding a copy" at work ... at work? This would all be on your work SMTP system and not Google (in expanded headers this should show up). Tell me, what is the header of the email received at work?
posted by Bodrik at 5:07 PM on November 1, 2011

This happens to me too. I send an e-mail and it immediately shows up in my in-box as if I'd sent it to myself.
posted by alms at 5:35 PM on November 1, 2011

Response by poster: What I showed is the entire (unwanted duplicate) email from the Gmail side. Via "Show original". If it were actually coming from a forwarder somewhere else I'd expect more headers (Received, etc) but there aren't. Which is why I think it's an entirely internal Gmail thing.

Additional note: I download my work email to home. So you'll see some extra fetchmail related stuff. But here's what I get at work, domains and such edited (not all my xxx and x.x.x.x are for the same server):
Return-Path: <>
Received: from deliver ([unix socket])
	 (authenticated user=foo bits=0)
	 by (Cyrus v2.4.12) with LMTPA;
	 Tue, 01 Nov 2011 18:27:39 -0500
X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on
X-Spam-Level: *
X-Spam-Status: No, score=1.3 required=5.0 tests=DKIM_ADSP_CUSTOM_MED,
	autolearn=disabled version=3.3.1
Received: from (localhost [])
	by (Postfix) with ESMTP id ACA7D30709E9
	for <foo@localhost>; Tue,  1 Nov 2011 18:27:37 -0500 (CDT)
MIME-Version: 1.0
Received: from [x.x.x.x]
	by with IMAP (fetchmail-6.3.21)
	for <foo@localhost> (single-drop); Tue, 01 Nov 2011 18:27:37 -0500 (CDT)
Received: from (x.x.x.x) by (x.x.x.x) with Microsoft SMTP Server id
 14.1.339.1; Tue, 1 Nov 2011 18:27:37 -0500
Received: from (
 [])	by (8.14.4/8.14.4) with ESMTP id
 pA1NRa2L021512	for <>; Tue, 1 Nov 2011 18:27:36 -0500
Received: by wwg7 with SMTP id 7so3750908wwg.10        for
 <>; Tue, 01 Nov 2011 16:27:36 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;; s=gamma;
Received: by with SMTP id k53mr596637wel.15.1320190056137; Tue,
 01 Nov 2011 16:27:36 -0700 (PDT)
Received: by with HTTP; Tue, 1 Nov 2011 16:27:36 -0700 (PDT)
Date: Tue, 1 Nov 2011 18:27:36 -0500
Message-ID: <>
Subject: Test for AskMe
From: "Foo Bar" <>
To: <>
Content-Type: text/plain; charset="ISO-8859-1"
X-MS-Exchange-Organization-AuthAs: Anonymous
X-MS-Exchange-Organization-SenderIdResult: Neutral
Received-SPF: Neutral ( x.x.x.x is neither
 permitted nor denied by domain of
X-MS-Exchange-Organization-SCL: 0
X-MS-Exchange-Organization-Antispam-Report: v=1.1
 cv=OW5Jf8cTDu6KnwOJIPIdmsAKeMFVXJONC2Gw3osVjzI= c=1 sm=1 a=nDghuxUhq_wA:10
 a=8nJEP1OIZ-IA:10 a=4oguxchAHpPP0S4VZ4YQPg==:17 a=BOE0sGAnXN_cewpia8MA:9
 a=wPNLvfGTeEIA:10 a=4oguxchAHpPP0S4VZ4YQPg==:117;OrigIP:x.x.x.x;SCL:0
X-MS-Exchange-Organization-AVStamp-Mailbox: MSFTFF;1;0;0 0 0

Here is my test for AskMe.

posted by sbutler at 5:43 PM on November 1, 2011

This happens to me too. I have no idea why, but I assumed I'd set it up on purpose somehow, sometime. Is it possible you have some add-on or setting that is doing it?
posted by lollusc at 5:58 PM on November 1, 2011

? I agree the original OP header should be longer if it was formally received... The single received via HTTP suggests the message never came from any SMTP server. Period.

Reality check, everybody check their pulses, are we perhaps looking at All Mail instead of Inbox?

If that is fine then:
Is it possible for you to use the Work SMTP? (The setting to use the send-as SMTP as the sender and not Google's SMTP) The work header shows Google's SMTP to your Work's so I'm wondering if this occurs as well with a different SMTP. In our theory in this thread it should not.
posted by Bodrik at 6:11 PM on November 1, 2011

Response by poster: @lollusc: I've looked over all my settings, but can't see anything. Not POPing email from other accounts to gmail. All my filters just apply labels. No forwarding address. I do have POP from gmail enabled (fetchmail at home) and IMAP (iPhone). No labs enabled.

@Bodrik: Yep, I am looking at my inbox.

Trying through my work SMTP server is an interesting idea, but same result. Also checked changing the Reply-To on the off chance that it mattered, but it doesn't (both and

Funny thing is I've noticed this before when sending test emails from my gmail to my work account. But since I almost never use gmail for work I was never motivated enough to do anything about it.
posted by sbutler at 6:30 PM on November 1, 2011

There exist in some clients the option to give yourself a copy of the email sent, but that is nothing more then frankly the "Sent" folder itself. Gmail doesn't do this... Unless maybe if you used a client for it? I know you can set Thunderbird to alter the Sent message's stored location. It is even possible to keep replies in the same folder as the replied-to email.

If the work SMTP does the same, then the remaining factors are your work address, or your Gmail itself.

I'm hoping if you send to another address it does not do this... right? I kind of wish Gmail would let you send read receipts. I'm wondering if you would produce 2 distinct ones if you read the copy and the work one...

running out of ideas... ;_;
posted by Bodrik at 7:48 PM on November 1, 2011

I've just been googling this (after going through my settings and finding no explanation), and it seems it's a relatively common problem, and perhaps related to a similar problem that affects people using Gmail on mobile devices. It seems like it's to do with having POP forwarding, and if you switch to IMAP, it should stop.

But I don't understand the actual mechanism behind the bug (if it is a bug).
posted by lollusc at 8:43 PM on November 1, 2011

I use IMAP not POP and it happens to me. I have several accounts where this is the case. It happens to any email address where the letters to the left of the "at" (@) sign are the same.
posted by JohnnyGunn at 1:29 AM on November 2, 2011

So you've told gmail that the two addresses are equivalent, so when you e-mail yourself, you get an e-mail.

Did I understand correctly?
posted by devnull at 5:04 AM on November 2, 2011

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