Solved Yahoo disposable address, case sensitivity

Slartybart

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This only affects disposable addresses and POP3 - the normal addresses work as they always did. Their web based eMail doesn't seem to have this problem either. Note also that you must be a Yahoo Plus user - paying for additional services.

Around the end of March, an issue with Yahoo disposable addresses was reported to customer care, I reported it around the end of April when I first noticed the problem.

The issue: mixed case suffix of disposable addresses are not converted to lower case before checking the database.
Using W74ums as the base and BobSmith as the suffix, the disposable eMail address would be W74ums-BobSmith @ yahoo.com - when you save the new disposable address in Yahoo, everything gets converted to lowercase.
If a client sends eMail to W74ums-BobSmith @ yahoo.com, Yahoo rejects it with an unknown user error because BobSmith doesn't match bobsmith. It was not always this way.

A HUGE problem if you have a few hundred clients and you subscribe to hundreds of sites. Client's mail might or might NOT reach you epending on what they have in contacts or type in the address field. Sites? Well, I don't recall what I entered on all of the sites - was it mixed case?

If you are a Yahoo Plus user and you set up disposable addresses - try an Email to one of those addresses specifying a mixed case suffix. If it works for you, then it must be something specific to my configuration.

Peace!
 

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I tested today and all seems well. eMail To: gets through when you specify mixed case on the "suffix" part of the disposable address. In other words, Yahoo found and fixed a bug.

Closing thread as solved.
 

My Computer

Computer type
Laptop
Computer Manufacturer/Model Number
HP Pavilion dv6-6c10us
OS
x64 (6.3.9600) Win8.1 Pro & soon dual boot x64 (6.1.7601) Win7_SP1 HomePrem
CPU
AMD A6-3420M APU with Radeon(tm) HD Graphics
Motherboard
Hewlett-Packard 1805
Memory
6.00 GB
Graphics Card(s)
AMD Radeon(TM) HD 6520G
Sound Card
(1) AMD High Definition Audio Device (2) IDT High Definiti
Monitor(s) Displays
HP W2072a 20" LCD (1600 x 900) @ 60 Hz
Screen Resolution
1366 x 768 x 32 bits (4294967296 colors) @ 60 Hz
Hard Drives
ST640LM0 00 HM641JI SATA Disk Device
Keyboard
Logitech k520 wireless KB
Mouse
Logitech m320 wireless mouse (bundled with KB)
Internet Speed
15/5 | 54 MB Wireless 'n'
Antivirus
Realtime: Defender or Avast | On-demand: Malwarebytes, ESET
Browser
IE 11 on Win8, IE 10 on win 7
Other Info
Media: [Gimp, Audacity, VLC] || Comm: [WEmail 2012, Skype] || Productivity: [OpenOffice,| Textpad] || Utils: [Sysinternals, cCleaner, Speccy, Defraggler]
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