When you look at an email address there are two parts: local-part@domain
From the way I read the "standards" the local-part restrictions are guided
by the Message Transport Agents (MTAs) within the @domain as long as they
follow the "may include" use clauses within the standards.
Wikipedia has a good write up at:https://en.wikipedia.org/wiki/Email_address
From an implementation standpoint many organizations have added
restrictions as to not allow ANY special characters within the organization.
The only characters supported by Lotus Notes for registered user names are:
letters (including those with accents and other diacritical marks from the
ISO Latin1 character set), numbers, ampersand, apostrophe, hyphen, period,
space, and underscore.
I am sure many other non-native SMTP message handling systems have similar
restrictions.
Oh, and "+" are "legal"
--
-jim
Jim Willeke
On Tue, Feb 9, 2016 at 8:18 PM, Rob Gibson <nosbig@xxxxxxxxx> wrote:
Chuck is right. Gmail implements a non-standard that allows for any or no
periods in the user portion of the email address. In other words,
n.o.s.b.i.g@xxxxxxxxx is equivalent to nosbig@xxxxxxxxx for all Gmail
accounts.
As another useful but non-standard extension, Gmail allows the use of a
plus sign and a string to be appended to the username and allow a
practically limitless set of unique email addresses to be generated on a
single account.
Imagine if I wanted to sign up to a questionable mailing list on some
random website. I could sign up as nosbig+junk@xxxxxxxxx. This gets to
my nosbig@xxxxxxxxx mailbox with the From: address as listed from my
newsletter signup. I can use this address in filters to keep my inbox from
getting cluttered. It's also a great way to see where your information is
sold and traded, as there could be a unique source of that email address.
Rob
On Tue, Feb 9, 2016 at 7:11 PM Chuck <cstickelman@xxxxxxxxxx> wrote:
On Tue, 2016-02-09 at 18:24 -0500, Mike wrote:
On 02/09/2016 05:59 PM, Larry DiGioia wrote:
So does "bellyacres" by itself.
On 02/09/2016 05:48 PM, Mike wrote:
-------- Forwarded Message --------
Subject: Test1
Date: Tue, 9 Feb 2016 22:25:16 +0000 (UTC)
From: Mike Bell <bellyacres96@xxxxxxxxx> <bellyacres96@xxxxxxxxx>
Reply-To: Mike Bell <bellyacres96@xxxxxxxxx> <bellyacres96@xxxxxxxxx>
To: belly.acres@xxxxxxxxx <belly.acres@xxxxxxxxx> <belly.acres@xxxxxxxxx>
Blahblahblah
-------
So bellyacres@xxxxxxxxx = belly.acres@xxxxxxxxx
Apparently so! I am able to log into the web interface the same way.
Either works actually...
Color me confused.
Mike
Ahhh right. That is my account "bellyacres@xxxxxxxxx"
<bellyacres@xxxxxxxxx>, to the best of my recollection
belly.acres@xxxxxxxxx does not equal bellyacres@xxxxxxxxx. A period
*is* still significant in an email address, yes?
Mike
I hope Rob chimes in. Because I seem to remember him telling me periods
on the left side of the @ on gmail accounts do not matter.
I just performed a test by sending a message to one of my GMail accounts
and my TWC account I used a period in my TWC account where one does not
exist and it still got delivered. Both GMail messages also arrived, one
with and one without a period in the same address.
Chuck
