Thanks Ned and Claus:
On 5/3/2020 11:11 AM, Claus Assmann wrote:
On Sun, May 03, 2020, Hector Santos wrote:
It appears to be accepted by various servers, including my own.
Well, most mail servers accept all kind of garbage ("be liberal ... ").
501 5.1.7 Bad sender's mailbox address syntax.
The icloud.com SMTP server accepted it. How I saw the issue was with
Apple's web-based icloud.com mail reader/viewer (MUA). It showed a
blank From: field when first reading it. But after viewing a previous
email, i.e. Apple News, it now used Apple's From address as a filler
for the notification email from field display. The bugs were reported
Just quote it and you're ok:
Ok. I am probably to change it so isn't a problem with MUAs as well --
be "conservative" on sending out. :-)
So I need to know if the address is valid. Its hard to decipher whether it
is or not from the RFC5322/RFC5321 BNF. It seems to read the ':' and '/'
characters are valid.
Where do you see an unquoted ':' as valid in "Local-part"? ':' is
used to separate "At-Domain" parts.
I guess I was reading multiple things between RFC5322 and RFC5321.
Jumped around a lot.
As Ned showed, I see now RFC5222 better defines the local-part. But
with RFC5321, it wasn't quite clear. It seems to stop with only one
occurrence of atext, no BNF for it and no reference to atext being
defined in RFC5322.
I suppose this might be another clarification issue for RFC5321bis.
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