Bad but still not found better

used it for about 3 months.
Search was very slow (takes around 5 to 10 seconds to give an answer).
Some e-mails just disappeared as I pressed Send.
Since today, the e-mails just don’t send anymore (not in draft, not in outbox, not in sent, just nowhere).
Support didn’t find any positive solution, and because I have it for more than 90 days, I can’t get a refund.
Bad overall experience, but still haven’t found better.

pysanchis about Airmail - Lightning Fast Email, v2.6.1