Learn Turkish: Mesajı şimdi yollarım. - I will send the message right now.

The aorist tense is often used for spontaneous decisions, quick promises, or offers made in the moment. By saying yollarım, you are making an immediate, casual promise like 'I will send it right now,' whereas yollayacağım would sound more like a rigid, pre-planned action.

Since the word şimdi (now) is used, shouldn't the verb be in the present continuous tense (yolluyorum)?

You could say Mesajı şimdi yolluyorum, but that means you are literally in the physical process of hitting the send button right this second. Using the aorist yollarım with şimdi acts as a quick assurance meaning 'I'll get it done immediately.'

How is the aorist suffix formed on the verb yollamak (to send) here?

The verb stem is yolla-. Because it ends in a vowel, the aorist suffix is simply -r. We then add the first-person 'I' ending -ım to get yollarım. If the stem had ended in a consonant, it would have taken a longer suffix like -ar, -er, or -ır.

Why does mesaj have an -ı at the end?