send email notification using send email smart service

I'm not sure what you've seen, but I can personally confirm that the Send Email Smart Service is very capable of sending an email to basically any valid email address.  What have you tried, exactly?

I have seen in the past that the SMTP server is blocking the emails from Appian. You may need to define a custom email server and then make sure they are not on the 'spam' list.

https://docs.appian.com/suite/help/19.3/Configuring_Custom_Email_Senders.html

Hope that helps

are you passing a user from Appian and wrapping it in a toemailrecipient? are you sure the email passed has a @ and proper .<type>?

Just some things to check. To debug, I would add a script task and save the email address you are trying to use in a PV s you can confirm it is as you expect before the email node.

Hi Ravinder -
It is possible to send an email from Appian to a valid email address.
Here's how.

1. direct address:
   Just enter the email address in the To field like as follows:
   

   "user@domain.com";

   
   It's unlikely that you will ever want to do this, since you're probably going to use expressions to send messages to different addresses as per the needs of your process.
   
   It should look like this:
   
   
   
2. dynamic address expression:
   Reference your expression that returns the text of the email address in the To field.
   When addressing the email in this way - it needs to be type cast as an email address.
   so do one of the following in the to field:
   
   (a) This takes the text and casts it to an email address type in when you call it.
   

   fn!toEmailAddress(rule!xyz_getEmailAddressText(vars))

   
   OR
   
   (b) This references the rule that casts the text to email first.
   

   rule!xyz_getEmailAddress(vars)
   
   /* where rule!xyz_getEmailAddress(vars)  */
   /* wraps the result text in fn!toEmailAddress in advance, */
   /* so you don't have to do it in the smart service */

   
   
   
   
   

I've found that when sending an email to an arbitrary email address (either plaintext or from a text PV containing the email address), it needs to be wrapped in the toEmailAddress() function in the "To" field of the Send Email node.  Also you should validate (preferably well beforehand) that the text in question is a valid formatted email address, including no leading or trailing spaces, etc.

Is it possible to mix variable types in the To (or CC) field? I have a use case where I need to send to the process initiator and an AD distribution group email address. Thanks!

Something like...

To: = {pv!userOrGroupArray; toemailaddress("distributionGroup@myOrg.com")}