Reusing mailer (SmtpTransport)

[holubond]

Hi, is it okay to reuse mailer (SmtpTransport) for long periods of time (as long as the app will run), or is there some caveat (e.g. the underlying connection might disconnect)? Is pool better suited for this purpose, or does it just enable using multiple connections concurrently? I couldn't find answer to this in the docs.

Thanks!

[paolobarbolini]

You should re-use the same transport for as long as possible as it stores it's own configuration for you. Also if the pool feature is on (it is by default) it recycles connections and reduces the need to do a new computationally expensive TLS handshake for every email you're going to send plus avoiding the slowness of having to do multiple round-trips to establish a TCP connection, authenticate ecc. If the underlying connection disconnects or times out the transport is going to throw it away and make a new one.

[DK26]

Does it throw away silently and retries to connect indefinitely or does it return an error?