A lot of people get confused on how to setup DKIM records properly on Route 53. Below is an example of how to properly setup a 2048 DKIM key bit length.
In the example below, we are going to use Google Workspace DKIM 2048 key.
Value = v=DKIM1; k=rsa; p=BIs7RIvO+Qy4ykp/5G7ub6WCv0ZDajFHtoPE6VAKB+K+qBIRJMlY3BAoC9p1xg0+wVxE8pzM9tqls2nZ8TjB7lSxkp4DBPIAf7uqD8LQsHAFCvi0ffk7O5OBUm0QA3J72wvIbqJysdNCtFPm+DQvgtZ2cX1IMBEoOi9w7rzLR2O+JbQaaR3hKk67CIFxfvNg0zWoVHDtbssvx6jRUeG19/CuPMLYgXSosEmOIeTFWgRAbFtt+qIbpbEK+VFAioVgDtpz0zkOa4nQ1sCcZ8JD+SbpmZIoO1F+LO4tQvM97lGtxIsXuzHRYv8XeCsc7IKoPTiZUKlDAcfWR9HwfbeMQukb36AoA
You would enter the value into route 53 by breaking this up into a smaller string separated by commas. The end result would look like the below. We highlighted in yellow start and end quotes.
Value = "v=DKIM1; k=rsa; p=BIs7RIvO+Qy4ykp/5G7ub6WCv0ZDajFHtoPE6VAKB+K+qBIRJMlY3BAoC9p1xg0+wVxE8pzM9tq""ls2nZ8TjB7lSxkp4DBPIAf7uqD8LQsHAFCvi0ffk7O5OBUm0QA3J72wvIbqJysdNCtFPm+DQvgtZ2cX1IMBEoOi9w7rzLR2O+JbQaaR3hKk67CIFxfvNg0zWoVHDtbssvx6jRUeG19/CuPMLYgXSosEmOIeTFWg""RAbFtt+qIbpbEK+VFAioVgDtpz0zkOa4nQ1sCcZ8JD+SbpmZIoO1F+LO4tQvM97lGtxIsXuzHRYv8XeCsc7IKoPTiZUKlDAcfWR9HwfbeMQukb36AoA"
Once completed, you can use this tool to validate your record and by adding google
as the selector.