> > On 2023-11-01, Simon Connah via Python-list python-list@python.org wrote: >
> > I'm building a simple project using smtplib and have a > > question. I've been doing unit testing but I'm not sure how to check > > if an email message is valid. > > > Send an e-mail using it? If the right person gets the e-mail, then > it's valid? > > > Using regex sounds like a bad idea to me and the other options I > > found required paying for third party services. > > > > Could someone push me in the right direction please? I just want to > > find out if a string is a valid email address. > OK. It is going to take me some time to get round to every reply here so please bear with me. Basically I'm writing unit tests and one of them passess in a string with an invalid email address. I need to be able to check the string to see if it is a valid email so that the unit test passess. > > You'll have to define "valid". Valid syntactically according to > <what>? Will be accepted by an SMTP server somewhere? Corresponds to > > a real person? > > Make sure it has an '@' in it. Possibly require at least one '.' > after the '@'. > > Trying to do anything more than that is just wasting your time and > annoying the mule. > Valid as in conforms to the standard. Although having looked at the standard that might be more difficult than originally planned. Simon.
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