No, the only way to submit the manuscripts to (IJSST) is through the account (login section in Journal's website), and the manuscripts sent to the email will not be considered in the reviewing process.
When the corresponding author registers in the journal system and receives the username and password, he/she could send the manuscript according to the "author guide" available on the journal website.
For articles that are accepted in the peer review process to be published, 4,500,000 IRR is received as the publication fee from the author(s). Article Processing charges
After manuscript acceptance and during the publication stage, adding new authors or modifying authorship roles is not permitted.
If an author wishes to remove their name from the author list, a signed letter from the author and all co-authors must be submitted, confirming their agreement.
Any changes to the order of authors require a signed letter from all authors indicating their approval.