Because attachments are forbidden.
By craic-ing his knuckles.
The Post Office
An envelope!
Because the rest of the letters are not-E.
Fe-mail
An Envelope EDIT: My deepest Canadian apologies to those who are calling this a riddle. I always took it as a cheesy joke
E-gypt
E-bae...
No R-E-S-P-E-C-T.
Because it's always in bed.
Coz 'e-mmental!
You see a bunch of envelopes stuffed into the disk drive.
Mick e-mouse.
Check for bugs in your system.
Spine
Ewes sincerely.
Best viscious.
An e-lectron.
I don't know, but it's not E.
To e or not to e that is the question.
Because it was on old croc.
May the force e-with you.
Because his e-dog kept chasing the e-postman.
Because every other letter is not E!
By spaghett-e-mail!
Because it is the capital of England.
Scent.
An e-mergency.
Envelope!
U and I.
She was always using fowl language.
By Spaghett-e-mail!
With stick e-tape.
Envelope
When there are no attachments
On the Inkernet.
Rename the mail folder to "instruction manuals"
E-ronimo!
I don't know but it's e-nourmous.
Because the lime was engaged.
With an icy-stare!
On the sprin-ternet.
Eleven. T-H-E A-L-P-H-A-B-E-T.
I pronounce it Frankfort.
The e-quator.
With their fish fingers.
An elk. He's got the E. the L. and the K.
Yours tin-sincerely.
By e-i-e-i-o-mail.
They'd rather give each other a ring.
E we go E we go E we go!
He wanted to check his e-mail.
They prefer to use Norse code.
An e-nigma.
Beast wishes.
Because your foot would go right through the computer screen!
When they are read.
Nothing.
Because he had a vowel movement.
Everyone thinks it's 'R', but his first love be the 'C'.
"The C" COMMENT A JOKE BELOW!
I want to make sure I have a backup before I put this thing on Ebay.
A fumble bee!
Fitting the wheelchair in the oven.
The wheelchair
I gotta run.
Because walking wouldn't burn enough calories.
No L
Because Rudolph intentionally grounded the team...
Because the letters can't go anywhere by themselves.
A cantaloupe. The spelling is completely different...
RRRRRRRRRRRRRgh
Raise the woof!
A subwoofer.