It kinda isn’t, however I found that some websites refuse to acknowledge that plusses are valid. I see this one uses dashes which might have a similar issue. Only thing I think is universally accepted are periods
As a kid I had an email address that started with a dash. Back then I regularly encountered websites that flagged it as invalid (but only if it started with it)
The format of an email address is local-part@domain, where the local-part may be up to 64 octets long and the domain may have a maximum of 255 octets.[5] The formal definitions are in RFC 5322 (sections 3.2.3 and 3.4.1) and RFC 5321—with a more readable form given in the informational RFC 3696 (written by J. Klensin, the author of RFC 5321) and the associated errata.
Local-part
The local-part of the email address may be unquoted or may be enclosed in quotation marks.
If unquoted, it may use any of these ASCII characters:
I don’t want to try to escape the following for Markdown, so I’m just gonna dump it in a blockquote:
uppercase and lowercase Latin letters A to Z and a to z
digits 0 to 9
printable characters !#$%&'*+-/=?^_`{|}~
dot ., provided that it is not the first or last character and provided also that it does not appear consecutively (e.g., [email protected] is not allowed).[8]
If quoted, it may contain Space, Horizontal Tab (HT), any ASCII graphic except Backslash and Quote and a quoted-pair consisting of a Backslash followed by HT, Space or any ASCII graphic; it may also be split between lines anywhere that HT or Space appears. In contrast to unquoted local-parts, the addresses ".John.Doe"@example.com, "John.Doe."@example.com and "John..Doe"@example.com are allowed.
It kinda isn’t, however I found that some websites refuse to acknowledge that plusses are valid. I see this one uses dashes which might have a similar issue. Only thing I think is universally accepted are periods
I haven’t found any place that doesn’t accept a dash.
As a kid I had an email address that started with a dash. Back then I regularly encountered websites that flagged it as invalid (but only if it started with it)
But then again, that was almost 25 years ago
I’m not saying that they won’t, but they’re non-compliant then.
https://en.wikipedia.org/wiki/Email_address#Local-part
I don’t want to try to escape the following for Markdown, so I’m just gonna dump it in a blockquote:
Oh I concur, it’s super annoying. I want to track who sells my info to spammers dammit