Site does not accept '+' in email addresses

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Phoenixatlantios

Site does not accept '+' in email addresses

Post by Phoenixatlantios » 02 Nov 2006, 12:06

GMail allows you to use + signs when giving out your email address to easily identify where mail is coming from, helping to discover where spam arrives from, allowing you to tag mail, etcetera. It works like this:
The following addresses are equivalent:
bob@gmail.com
b.ob@gmail.com
bob+trashmail@gmail.com
Source of this information: Extreme Tech.

On a different forum where I raised the issue, someone was kind enough to quote the SMTP specification 2.3.10 to support the argument:
As used in this specification, an "address" is a character string
that identifies a user to whom mail will be sent or a location into
which mail will be deposited. The term "mailbox" refers to that
depository. The two terms are typically used interchangeably unless
the distinction between the location in which mail is placed (the
mailbox) and a reference to it (the address) is important. An
address normally consists of user and domain specifications. The
standard mailbox naming convention is defined to be "local-
part@domain": contemporary usage permits a much broader set of
applications than simple "user names". Consequently, and due to a
long history of problems when intermediate hosts have attempted to
optimize transport by modifying them, the local-part MUST be
interpreted and assigned semantics only by the host specified in the
domain part of the address.
Originally found by Britonguy

Kind of surprised a mail delivery system doesn't completely abide by those rules - it'd have to be a bug if you're processing email addresses incorrectly.

Admin
Site Admin
Posts: 1243
Joined: 16 Jun 2006, 08:55
Location: Germany
Contact:

Post by Admin » 02 Nov 2006, 15:46

Yes you are right.
It would be nice to support plus addressing for the trashmail login names and the destination email address. I will see if I can implement this.
But one question:
What does b.ob@gmail.com ?
What does the dot ? Is it simply ignored?
Best regards,
Stephan Ferraro
Founder of TrashMail.com
CEO of Aionda GmbH

Admin
Site Admin
Posts: 1243
Joined: 16 Jun 2006, 08:55
Location: Germany
Contact:

Re: Site does not accept '+' in email addresses

Post by Admin » 18 Dec 2006, 00:10

Phoenixatlantios wrote:GMail allows you to use + signs when giving out your email address to easily identify where mail is coming from, helping to discover where spam arrives from, allowing you to tag mail, etcetera. It works like this:
The following addresses are equivalent:
bob@gmail.com
b.ob@gmail.com
bob+trashmail@gmail.com
Source of this information: Extreme Tech.

On a different forum where I raised the issue, someone was kind enough to quote the SMTP specification 2.3.10 to support the argument:
As used in this specification, an "address" is a character string
that identifies a user to whom mail will be sent or a location into
which mail will be deposited. The term "mailbox" refers to that
depository. The two terms are typically used interchangeably unless
the distinction between the location in which mail is placed (the
mailbox) and a reference to it (the address) is important. An
address normally consists of user and domain specifications. The
standard mailbox naming convention is defined to be "local-
part@domain": contemporary usage permits a much broader set of
applications than simple "user names". Consequently, and due to a
long history of problems when intermediate hosts have attempted to
optimize transport by modifying them, the local-part MUST be
interpreted and assigned semantics only by the host specified in the
domain part of the address.
Originally found by Britonguy

Kind of surprised a mail delivery system doesn't completely abide by those rules - it'd have to be a bug if you're processing email addresses incorrectly.
Plus addresses are now supported.
But there is still a bug in the firefox extension which must be fixed. For any kind of reason the pluses are received as space in the web server software.
Best regards,
Stephan Ferraro
Founder of TrashMail.com
CEO of Aionda GmbH

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