Anti-virus software?

Do not install a third party antivirus app. They use system resources while providing no benefit and they may cause problems.

Let the MacOS do its job:

macOS - Security - Apple

Set up your Mac to be secure - Apple Support

Protect your Mac from malware - Apple Support

Security features on your MacBook Pro - Apple Support

Effective defenses against malware and ot… - Apple Community

I wholeheartedly agree with BobTheFisherman on A/V apps. If they are worried about you forwarding email to their computers from yours that might contain viruses their A/V software on their computers should take care of that.

However, if they are adamant about you having an A/V app installed give ClamXAV a try. It's the most unobtrusive A/V app to Macs and will compromise performance the least. There's a trial/demo version you can try to see if it will run on your Mac without serious consequences.

Show the links to the non-profit personnel that BobTheFisherman gave and see if they will relent with the requirement.

Another popular choice is ClamXAV, which is recommended because, like the free version of MalwareBytes (just let the free trial expire, it's fine) it also does NOT scan your files non-stop, looking for antique Windows virus patterns that are not a threat to your already well-protected Macintosh.

Cappiedog11 wrote:

For Business or for home use apple recommends using it, as malware has a potential of getting installed on a Mac.

Those links are from Malwarebytes. If you have a link from Apple that recommends Malwarebytes, you can include that. Otherwise, please don't random companies' marketing efforts to Apple.

DrJuliaSbragia wrote:

I am setting up an email account for a non-profit with which I volunteer. They want to see a screen shot of proof I have anti virus software running on my computer. I do not have an antivirus software. I always thought that Macs did not need them

Tell them you have a Mac and you don't need it. If that isn't good enough for them, let them pay a consultant.

You are confusing malware (for which links have been provided) with Anti virus software. There has been no virus for Mac - it is a Windows thing.

And, I've been told by an Apple senior advisor that I do not need AV software.

Cappiedog11 wrote:

if you call apple they will tell you they recommend it. Their support team told me to get it because they thought I had a possible malware infection.

If you have an Apple published ARTICLE that suggests you should be running a Virus Scanner, please post a link to it.

Otherwise, the recommendation any person gets on any given day from any of the about 750,000 Apple employs may vary widely, and should NOT be taken as gospel.

Cappiedog11 wrote:

if you call apple they will tell you they recommend it. Their support team told me to get it because they thought I had a possible malware infection.

Then buy whatever they recommend. If Apple support recommended a product to you, and that product is required to do you job, why are you asking us?

No one who responded on that thread is an Apple employee. Responders on these forums who are Apple employees have special Avatars that include words like Apple Community Specialist.

The "solved" post on that thread, by Kurt Lang, suggests the Original Poster received "a lot of bad information."

Look at this thread

Combo Cleaner safe for Mac? - Apple Community

Take a picture of this and send it to them:

Mac's don't, But if you need proof you can download Malware bytes here: For Business or for home use apple recommends using it, as malware has a potential of getting installed on a Mac.

if you call apple they will tell you they recommend it. Their support team told me to get it because they thought I had a possible malware infection.

I’m not asking any thing. This is not my question.

Ok. Sorry I just got a little confused.