Using special symbols in login not supported

[TechCatOther]

When use login as test@test.com AUTH PLAIN generate wrong. Perl use @test as array, not a string.
use as below fix it:
smtp-test.sh auth test\@test.com

[gerhard-tinned]

Thank you for reporting this issue to us.

First of all, this is a very simple shell script for testing testing basic smtp functionality. As it is intentionally kept simple, there is the possibility that there are some cases this shell script does not work as intended.

To find the issue, please send the output of the script so we can investigate.

IMPORTENT
When you send the output to us, make sure that all private information like the password and email address are replaced. To investigate into the issue, please keep the "special characters" you mentioned in the output. If the password would be "pa$$word", make sure to replace it with a string containing the special characters (as this is where you reported the issue) like this for example "xxx$$xxxxx".

I will try to analyse your issue as soon as I get the output.